A commonly asked question among growers is; “does the color of light affect plant growth?” The answer is yes! Light color sure affects plant growth and we will be discussing why this is so.
Light is one crucial factor required for the optimal growth of plants. It is important for the reaction and activities that go on in your plants, which are required for their proper development. The color of light affects the growth and productivity of plants in many ways and we will be discussing this in more detail.
How Does The Color Of Light Affect Plant Growth?
The light that your grow light emits comes in different spectra for use towards your plants’ growth. The color of grow light you supply your plant will not only affect your plants’ growth but will also determine the result of their development.
The process of photosynthesis where plants make their food requires the use of light. Also, chlorophyll is responsible for the green pigmentation of leaves and stems. It requires light to transform carbon dioxide into food and this is done by the energy provided by light.
How Do You Use Grow Lights For Outdoor Plants?
Light is an absolute necessity for any and every plant, and adequate light is a must for the efficient growth and production of any plant.
Sunlight is the natural and most used source of light for plants. However, sometimes plants even when planted outside may not be able to receive the adequate amount of sunlight that they require to grow. This could be for example, when plants are planted or grow under taller trees or a canopy of trees. It may also be if plants are in an area of a garden that receives short hours of sunlight exposure.
The use of grow lights outdoors is not very common but can be a good way to give plants supplemental light to help improve growth and productivity.
There are several considerations to keep in mind if you are going to use grow lights outdoors;
- Because these lights will be outside where they will be exposed to environmental conditions such as rain and winds, make sure you get waterproof and secure the lights properly to prevent them from blowing away.
- Be careful to position the lights in a place where they won’t get interference from other plants, shade, etc.
- Remember that you do not need to have to grow lights on at all times, put them on a timer so that your plants only get the light that they need. This will also help you save money.
What Plants Don’t Like Grow Lights?
Most plants need light (whether natural or artificial) to grow efficiently. This applies to both indoor and outdoor plants. Most plants would die without getting a bit of light exposure.
There are however certain plants that do well without light and are mostly planted as indoor plants, or in areas that do not have a lot of sunlight. These plants would be good for a beginner who is starting out or still learning how to take care of plants.
Here are some of these plants;
-
Bromeliad (Bromeliaceae)
-
Chinese Evergreen (Aglaonema)
-
Cast Iron Plant (Aspidistra elatior)
-
Dracaena (Dracaena)
-
Dumb Cane (Dieffenbachia)
-
English Ivy (Hedera helix)
-
Peace Lily (Spathiphyllum)
How Do You Put Grow Lights on Indoor Plants?
The best place to position grow lights on indoor plants is directly above the plants. This is so that the plants can grow upright.
If the lights are placed, for example on the side of the plant, it will lean towards it to “follow” the light which is not ideal. Placing the grow light on top of the plants will help ensure an even distribution of light to the plants. This is the best way to put grow lights on indoor plants.
How Long Should I Leave My Plants Under Grow Lights?
Grow lights do not need to be on all the time. The idea with them is that they should replicate the light conditions that would be provided by sunlight. They aim to create a similar day and night cycle as the natural one.
The length of time you should leave your grow lights on depends on how light-hungry your plants are. So do a bit of research to find out how much light your plant needs for optimum growth and health. Generally grow lights are left on for anywhere between 8-10 hours a day
How Far Should LED Grow Light Be From Plants?
The distance between LED grow lights and plants depends on the intensity of the light. For LEDs of 200 watts should be placed between 12-20 inches, and those of high wattage like 1000 watts should be placed 36-46 inches from the top of the plant.
Which Plants Can Grow in Artificial Light?
Plants such as:
- Pothos (Epipremnum aureum)
- Peace lily (Spathiphyllum wallisii)
- Cast iron plant (Aspidistra elatior)
- Peacock plant (Calathea makoyana)
- Snake plant (Dracaena trifasciata)
- Sword fern (Polystichum munitum)
- Philodendrons
- Peperomia
- Spider plant (Chlorophytum comosum)
all grow well under artificial light.
Does a Plant Grow Faster in Sunlight or Artificial Light?
A plant would grow faster under artificial light than in sunlight. This is because artificial light can be adjusted to best suit the needs of the plant at that specific time, and therefore help to improve the growth and production of that plant.
Why Is Green Light Bad For Plant Growth?
Some studies suggest that green light makes plants behave as if they’re growing in poor environments that have a lot of shade. This could be the cause of plants having stunted growth and development if this green light is used on them.
Green light is reflected by plants, which is why they appear green. And because this green light is reflected, plants absorb very little of it. Because of this, it is thought to have minimal to no use for plant growth, particularly in the processes of photomorphogenesis and photosynthesis.
The role of green light for plant growth is yet to be widely explored as there are no definitive studies on its importance.
Full spectrum LED lights include green light, it is however unclear how useful it is for stimulating growth.
– The topic has yet to be widely studied. While full-spectrum LED lights include green light, it’s unclear how useful green light is for stimulating plant growth.
Currently, many growers use green LEDs to check their plants for things such as pest infestations or damage during the dark cycle of plant growth. Greenlight mimics shade or moonlight, so these lights can be used without interfering with the plant’s cycle.
How Does Blue Light Affect Plant Growth?
Blue light is referred to as radiation and has wavelengths between 400 and 500 nm. This wavelength is in the visible spectrum and has high energy which greatly affects photosynthesis, plant growth, and flowering.
Blue light is not as efficient as other lights in the electromagnetic energy wavelength, it is however still necessary for the growth of plants.
Another important function of blue light is regulating the plant stomata. Stomata are the pores in the dermis or skin of the leaves and stems of plants, which are important for gas exchange. These pores open and close, allowing the intake of carbon dioxide and the release of oxygen. As this process is essential for photosynthesis, it makes blue light necessary.
The shorter wavelength of blue light makes it very important in the processes that increase vitamin levels in plants, the quality, as well as overall plant health. Used in conjunction with red light, blue light can serve as a regulator for plant flowering.
How Does Yellow Light Affect Plant Growth?
Yellow light by itself plays a trivial role in photosynthesis and therefore plant growth or flowering, it is, however, useful in combination with other colors.
Much of the yellow light is reflected together with the green light. Because of this, placing a plant under yellow light will stunt its growth and development. If seedlings are given yellow or orange light alone, they will not be able to create carbohydrates, and so will not grow well or thrive.
In one study, however, yellow light has been found to have a positive impact on bioactive flavonoid accumulation in some herbs. This could mean that it just has not been studied enough and its effects are not well understood yet.
What Color Makes Plants Grow Faster?
Having discussed in detail all these different colors and their roles in plant growth, you are now probably wondering what the best color for plants that will affect their growth is. Simply put, the best color is a combination of red and blue light. Red light helps to increase plant biomass. The blue light on the other hand controls the flow of chloroplasts in the cells, which is responsible for oxygen transmission and also regulates the stomata opening
Blue light is ideal for the early plant stage such as seedlings. As your plant matures, the red and blue light colors are combinations excellent for your plants’ growth. That is why red-blue grow light combinations are popular on the market.
Does The Color Of Light Affect Plant Growth? – Final Say
The colors of light contribute a lot during different growth stages in a plant’s life cycle. Knowing what color grow lights to purchase, and which to use for each growth stage, as well as knowing which colors to avoid is absolutely crucial to the success of your plants.
The extensive information provided in this article will set you well on the path to success with this subject. If you go to a store and are still unsure, ask the light expert at the shop so that you can be more confident with your purchase.
The most important point to remember is that a combination of blue and red light is best for plants, colors such as green and yellow however are not ideal. Full spectrum growth lights are sold with the whole light spectrum, as the light suggests, and you will never go wrong with them.
Happy gardening.
FAQ’s
How does the color of light affect plant growth?
The most important factor in determining plant growth is sunlight. Plants need light to grow. However, the quality of light that they receive has a huge impact on their growth. Light is made up of electromagnetic radiation. The wavelength or color of light determines the color of light. For example, red light (in the visible spectrum) is longer than blue light (in the visible spectrum), which is why many plants absorb it in heaps.
The color of light affects all life on Earth. Light is composed of electromagnetic radiation, including visible light, ultraviolet light, and infrared light. These wavelengths of light are absorbed by plant chlorophyll, which helps plants process sunlight and produce energy. When light is in the blue-green range, it is called blue light. When light is in the red-orange range, it is called red light. When light is in the green range, it is called green light.
When light is in the yellow-orange range, it is called yellow light. When light is in the violet range, it is called violet light.
How does color of light affect photosynthesis?
Color of light affects photosynthesis in a plant. Green and red light stimulate the plant to grow more. Blue light stimulates the plant to grow less. If the plant is not exposed to blue light, it will grow more than if it is exposed to blue light.
What color of light is most effective for plant growth?
The answer to this question depends on the type of plant and its position in the light spectrum. Plants use light to manufacture energy from the sun's rays, and they use light to make the food they need for survival. The light color that a plant needs is determined by its specific needs for growth and development.
Which plant uses blue light to grow more?
The answer is the plant fern. The plant fern is a small green plant that grows in moist soil. It is very similar to a plant called moss.
What color light is best for germination?
You can use any type of high intensity lighting you want, but the light spectrum emitted by your bulbs matters.
High-pressure sodium bulbs emit more blue light than other types of bulbs. This makes them effective at germination but not so good for later development. Halogen bulbs emit a lot of red and yellow light, which is useful for later growth but may not be effective for germination.
Red & Blue Light Combination
The red and blue light are a great combination and they are needed as your plant matures. They are especially required for both the vegetative and flowering stages. This red and blue light combination enhances the production of more leaves and crops.
Violet Or Purple Light
Violet light or purple light is an additional light that your plants can benefit from. These colors have the shortest wavelength and high energy which enables the plant to be able to absorb them well. The light energy in the violet color results in a sweet aroma, and great plant color, and is a flavor booster in vegetables and fruits.
Therefore, you can use this light at any stage of a plant to boost its color and improve its taste. Violet light will also enhance the number of antioxidants in a plant.
Greenlight
The effect of green light on plant growth is not so significant. The reason is that most plants are already green in color and thus will reflect green rather than absorb it.
Yellow Light
Yellow light does not have much effect on the growth of a plant. It is just like green lights which are difficult for plants to absorb.
Ultraviolet Light
Ultraviolet light is known to be harmful to humans. So, just as ultraviolet light is harmful to humans, high exposure is also bad for plants. Your plants will develop with little exposure to ultraviolet light.
How Do You Use Grow Lights For Outdoor Plants?
Light is an absolute necessity for any and every plant, and adequate light is a must for the efficient growth and production of any plant.
Sunlight is the natural and most used source of light for plants. However, sometimes plants even when planted outside may not be able to receive the adequate amount of sunlight that they require to grow. This could be for example, when plants are planted or grow under taller trees or a canopy of trees. It may also be if plants are in an area of a garden that receives short hours of sunlight exposure.
The use of grow lights outdoors is not very common but can be a good way to give plants supplemental light to help improve growth and productivity.
There are several considerations to keep in mind if you are going to use grow lights outdoors;
- Because these lights will be outside where they will be exposed to environmental conditions such as rain and winds, make sure you get waterproof and secure the lights properly to prevent them from blowing away.
- Be careful to position the lights in a place where they won’t get interference from other plants, shade, etc.
- Remember that you do not need to have to grow lights on at all times, put them on a timer so that your plants only get the light that they need. This will also help you save money.
What Plants Don’t Like Grow Lights?
Most plants need light (whether natural or artificial) to grow efficiently. This applies to both indoor and outdoor plants. Most plants would die without getting a bit of light exposure.
There are however certain plants that do well without light and are mostly planted as indoor plants, or in areas that do not have a lot of sunlight. These plants would be good for a beginner who is starting out or still learning how to take care of plants.
Here are some of these plants;
-
Bromeliad (Bromeliaceae)
-
Chinese Evergreen (Aglaonema)
-
Cast Iron Plant (Aspidistra elatior)
-
Dracaena (Dracaena)
-
Dumb Cane (Dieffenbachia)
-
English Ivy (Hedera helix)
-
Peace Lily (Spathiphyllum)
How Do You Put Grow Lights on Indoor Plants?
The best place to position grow lights on indoor plants is directly above the plants. This is so that the plants can grow upright.
If the lights are placed, for example on the side of the plant, it will lean towards it to “follow” the light which is not ideal. Placing the grow light on top of the plants will help ensure an even distribution of light to the plants. This is the best way to put grow lights on indoor plants.
How Long Should I Leave My Plants Under Grow Lights?
Grow lights do not need to be on all the time. The idea with them is that they should replicate the light conditions that would be provided by sunlight. They aim to create a similar day and night cycle as the natural one.
The length of time you should leave your grow lights on depends on how light-hungry your plants are. So do a bit of research to find out how much light your plant needs for optimum growth and health. Generally grow lights are left on for anywhere between 8-10 hours a day
How Far Should LED Grow Light Be From Plants?
The distance between LED grow lights and plants depends on the intensity of the light. For LEDs of 200 watts should be placed between 12-20 inches, and those of high wattage like 1000 watts should be placed 36-46 inches from the top of the plant.
Which Plants Can Grow in Artificial Light?
Plants such as:
- Pothos (Epipremnum aureum)
- Peace lily (Spathiphyllum wallisii)
- Cast iron plant (Aspidistra elatior)
- Peacock plant (Calathea makoyana)
- Snake plant (Dracaena trifasciata)
- Sword fern (Polystichum munitum)
- Philodendrons
- Peperomia
- Spider plant (Chlorophytum comosum)
all grow well under artificial light.
Does a Plant Grow Faster in Sunlight or Artificial Light?
A plant would grow faster under artificial light than in sunlight. This is because artificial light can be adjusted to best suit the needs of the plant at that specific time, and therefore help to improve the growth and production of that plant.
Why Is Green Light Bad For Plant Growth?
Some studies suggest that green light makes plants behave as if they’re growing in poor environments that have a lot of shade. This could be the cause of plants having stunted growth and development if this green light is used on them.
Green light is reflected by plants, which is why they appear green. And because this green light is reflected, plants absorb very little of it. Because of this, it is thought to have minimal to no use for plant growth, particularly in the processes of photomorphogenesis and photosynthesis.
The role of green light for plant growth is yet to be widely explored as there are no definitive studies on its importance.
Full spectrum LED lights include green light, it is however unclear how useful it is for stimulating growth.
– The topic has yet to be widely studied. While full-spectrum LED lights include green light, it’s unclear how useful green light is for stimulating plant growth.
Currently, many growers use green LEDs to check their plants for things such as pest infestations or damage during the dark cycle of plant growth. Greenlight mimics shade or moonlight, so these lights can be used without interfering with the plant’s cycle.
How Does Blue Light Affect Plant Growth?
Blue light is referred to as radiation and has wavelengths between 400 and 500 nm. This wavelength is in the visible spectrum and has high energy which greatly affects photosynthesis, plant growth, and flowering.
Blue light is not as efficient as other lights in the electromagnetic energy wavelength, it is however still necessary for the growth of plants.
Another important function of blue light is regulating the plant stomata. Stomata are the pores in the dermis or skin of the leaves and stems of plants, which are important for gas exchange. These pores open and close, allowing the intake of carbon dioxide and the release of oxygen. As this process is essential for photosynthesis, it makes blue light necessary.
The shorter wavelength of blue light makes it very important in the processes that increase vitamin levels in plants, the quality, as well as overall plant health. Used in conjunction with red light, blue light can serve as a regulator for plant flowering.
How Does Yellow Light Affect Plant Growth?
Yellow light by itself plays a trivial role in photosynthesis and therefore plant growth or flowering, it is, however, useful in combination with other colors.
Much of the yellow light is reflected together with the green light. Because of this, placing a plant under yellow light will stunt its growth and development. If seedlings are given yellow or orange light alone, they will not be able to create carbohydrates, and so will not grow well or thrive.
In one study, however, yellow light has been found to have a positive impact on bioactive flavonoid accumulation in some herbs. This could mean that it just has not been studied enough and its effects are not well understood yet.
What Color Makes Plants Grow Faster?
Having discussed in detail all these different colors and their roles in plant growth, you are now probably wondering what the best color for plants that will affect their growth is. Simply put, the best color is a combination of red and blue light. Red light helps to increase plant biomass. The blue light on the other hand controls the flow of chloroplasts in the cells, which is responsible for oxygen transmission and also regulates the stomata opening
Blue light is ideal for the early plant stage such as seedlings. As your plant matures, the red and blue light colors are combinations excellent for your plants’ growth. That is why red-blue grow light combinations are popular on the market.
Does The Color Of Light Affect Plant Growth? – Final Say
The colors of light contribute a lot during different growth stages in a plant’s life cycle. Knowing what color grow lights to purchase, and which to use for each growth stage, as well as knowing which colors to avoid is absolutely crucial to the success of your plants.
The extensive information provided in this article will set you well on the path to success with this subject. If you go to a store and are still unsure, ask the light expert at the shop so that you can be more confident with your purchase.
The most important point to remember is that a combination of blue and red light is best for plants, colors such as green and yellow however are not ideal. Full spectrum growth lights are sold with the whole light spectrum, as the light suggests, and you will never go wrong with them.
Happy gardening.
FAQ’s
How does the color of light affect plant growth?
The most important factor in determining plant growth is sunlight. Plants need light to grow. However, the quality of light that they receive has a huge impact on their growth. Light is made up of electromagnetic radiation. The wavelength or color of light determines the color of light. For example, red light (in the visible spectrum) is longer than blue light (in the visible spectrum), which is why many plants absorb it in heaps.
The color of light affects all life on Earth. Light is composed of electromagnetic radiation, including visible light, ultraviolet light, and infrared light. These wavelengths of light are absorbed by plant chlorophyll, which helps plants process sunlight and produce energy. When light is in the blue-green range, it is called blue light. When light is in the red-orange range, it is called red light. When light is in the green range, it is called green light.
When light is in the yellow-orange range, it is called yellow light. When light is in the violet range, it is called violet light.
How does color of light affect photosynthesis?
Color of light affects photosynthesis in a plant. Green and red light stimulate the plant to grow more. Blue light stimulates the plant to grow less. If the plant is not exposed to blue light, it will grow more than if it is exposed to blue light.
What color of light is most effective for plant growth?
The answer to this question depends on the type of plant and its position in the light spectrum. Plants use light to manufacture energy from the sun's rays, and they use light to make the food they need for survival. The light color that a plant needs is determined by its specific needs for growth and development.
Which plant uses blue light to grow more?
The answer is the plant fern. The plant fern is a small green plant that grows in moist soil. It is very similar to a plant called moss.
What color light is best for germination?
You can use any type of high intensity lighting you want, but the light spectrum emitted by your bulbs matters.
High-pressure sodium bulbs emit more blue light than other types of bulbs. This makes them effective at germination but not so good for later development. Halogen bulbs emit a lot of red and yellow light, which is useful for later growth but may not be effective for germination.
Red & Blue Light Combination
The red and blue light are a great combination and they are needed as your plant matures. They are especially required for both the vegetative and flowering stages. This red and blue light combination enhances the production of more leaves and crops.
Violet Or Purple Light
Violet light or purple light is an additional light that your plants can benefit from. These colors have the shortest wavelength and high energy which enables the plant to be able to absorb them well. The light energy in the violet color results in a sweet aroma, and great plant color, and is a flavor booster in vegetables and fruits.
Therefore, you can use this light at any stage of a plant to boost its color and improve its taste. Violet light will also enhance the number of antioxidants in a plant.
Greenlight
The effect of green light on plant growth is not so significant. The reason is that most plants are already green in color and thus will reflect green rather than absorb it.
Yellow Light
Yellow light does not have much effect on the growth of a plant. It is just like green lights which are difficult for plants to absorb.
Ultraviolet Light
Ultraviolet light is known to be harmful to humans. So, just as ultraviolet light is harmful to humans, high exposure is also bad for plants. Your plants will develop with little exposure to ultraviolet light.
How Do You Use Grow Lights For Outdoor Plants?
Light is an absolute necessity for any and every plant, and adequate light is a must for the efficient growth and production of any plant.
Sunlight is the natural and most used source of light for plants. However, sometimes plants even when planted outside may not be able to receive the adequate amount of sunlight that they require to grow. This could be for example, when plants are planted or grow under taller trees or a canopy of trees. It may also be if plants are in an area of a garden that receives short hours of sunlight exposure.
The use of grow lights outdoors is not very common but can be a good way to give plants supplemental light to help improve growth and productivity.
There are several considerations to keep in mind if you are going to use grow lights outdoors;
- Because these lights will be outside where they will be exposed to environmental conditions such as rain and winds, make sure you get waterproof and secure the lights properly to prevent them from blowing away.
- Be careful to position the lights in a place where they won’t get interference from other plants, shade, etc.
- Remember that you do not need to have to grow lights on at all times, put them on a timer so that your plants only get the light that they need. This will also help you save money.
What Plants Don’t Like Grow Lights?
Most plants need light (whether natural or artificial) to grow efficiently. This applies to both indoor and outdoor plants. Most plants would die without getting a bit of light exposure.
There are however certain plants that do well without light and are mostly planted as indoor plants, or in areas that do not have a lot of sunlight. These plants would be good for a beginner who is starting out or still learning how to take care of plants.
Here are some of these plants;
-
Bromeliad (Bromeliaceae)
-
Chinese Evergreen (Aglaonema)
-
Cast Iron Plant (Aspidistra elatior)
-
Dracaena (Dracaena)
-
Dumb Cane (Dieffenbachia)
-
English Ivy (Hedera helix)
-
Peace Lily (Spathiphyllum)
How Do You Put Grow Lights on Indoor Plants?
The best place to position grow lights on indoor plants is directly above the plants. This is so that the plants can grow upright.
If the lights are placed, for example on the side of the plant, it will lean towards it to “follow” the light which is not ideal. Placing the grow light on top of the plants will help ensure an even distribution of light to the plants. This is the best way to put grow lights on indoor plants.
How Long Should I Leave My Plants Under Grow Lights?
Grow lights do not need to be on all the time. The idea with them is that they should replicate the light conditions that would be provided by sunlight. They aim to create a similar day and night cycle as the natural one.
The length of time you should leave your grow lights on depends on how light-hungry your plants are. So do a bit of research to find out how much light your plant needs for optimum growth and health. Generally grow lights are left on for anywhere between 8-10 hours a day
How Far Should LED Grow Light Be From Plants?
The distance between LED grow lights and plants depends on the intensity of the light. For LEDs of 200 watts should be placed between 12-20 inches, and those of high wattage like 1000 watts should be placed 36-46 inches from the top of the plant.
Which Plants Can Grow in Artificial Light?
Plants such as:
- Pothos (Epipremnum aureum)
- Peace lily (Spathiphyllum wallisii)
- Cast iron plant (Aspidistra elatior)
- Peacock plant (Calathea makoyana)
- Snake plant (Dracaena trifasciata)
- Sword fern (Polystichum munitum)
- Philodendrons
- Peperomia
- Spider plant (Chlorophytum comosum)
all grow well under artificial light.
Does a Plant Grow Faster in Sunlight or Artificial Light?
A plant would grow faster under artificial light than in sunlight. This is because artificial light can be adjusted to best suit the needs of the plant at that specific time, and therefore help to improve the growth and production of that plant.
Why Is Green Light Bad For Plant Growth?
Some studies suggest that green light makes plants behave as if they’re growing in poor environments that have a lot of shade. This could be the cause of plants having stunted growth and development if this green light is used on them.
Green light is reflected by plants, which is why they appear green. And because this green light is reflected, plants absorb very little of it. Because of this, it is thought to have minimal to no use for plant growth, particularly in the processes of photomorphogenesis and photosynthesis.
The role of green light for plant growth is yet to be widely explored as there are no definitive studies on its importance.
Full spectrum LED lights include green light, it is however unclear how useful it is for stimulating growth.
– The topic has yet to be widely studied. While full-spectrum LED lights include green light, it’s unclear how useful green light is for stimulating plant growth.
Currently, many growers use green LEDs to check their plants for things such as pest infestations or damage during the dark cycle of plant growth. Greenlight mimics shade or moonlight, so these lights can be used without interfering with the plant’s cycle.
How Does Blue Light Affect Plant Growth?
Blue light is referred to as radiation and has wavelengths between 400 and 500 nm. This wavelength is in the visible spectrum and has high energy which greatly affects photosynthesis, plant growth, and flowering.
Blue light is not as efficient as other lights in the electromagnetic energy wavelength, it is however still necessary for the growth of plants.
Another important function of blue light is regulating the plant stomata. Stomata are the pores in the dermis or skin of the leaves and stems of plants, which are important for gas exchange. These pores open and close, allowing the intake of carbon dioxide and the release of oxygen. As this process is essential for photosynthesis, it makes blue light necessary.
The shorter wavelength of blue light makes it very important in the processes that increase vitamin levels in plants, the quality, as well as overall plant health. Used in conjunction with red light, blue light can serve as a regulator for plant flowering.
How Does Yellow Light Affect Plant Growth?
Yellow light by itself plays a trivial role in photosynthesis and therefore plant growth or flowering, it is, however, useful in combination with other colors.
Much of the yellow light is reflected together with the green light. Because of this, placing a plant under yellow light will stunt its growth and development. If seedlings are given yellow or orange light alone, they will not be able to create carbohydrates, and so will not grow well or thrive.
In one study, however, yellow light has been found to have a positive impact on bioactive flavonoid accumulation in some herbs. This could mean that it just has not been studied enough and its effects are not well understood yet.
What Color Makes Plants Grow Faster?
Having discussed in detail all these different colors and their roles in plant growth, you are now probably wondering what the best color for plants that will affect their growth is. Simply put, the best color is a combination of red and blue light. Red light helps to increase plant biomass. The blue light on the other hand controls the flow of chloroplasts in the cells, which is responsible for oxygen transmission and also regulates the stomata opening
Blue light is ideal for the early plant stage such as seedlings. As your plant matures, the red and blue light colors are combinations excellent for your plants’ growth. That is why red-blue grow light combinations are popular on the market.
Does The Color Of Light Affect Plant Growth? – Final Say
The colors of light contribute a lot during different growth stages in a plant’s life cycle. Knowing what color grow lights to purchase, and which to use for each growth stage, as well as knowing which colors to avoid is absolutely crucial to the success of your plants.
The extensive information provided in this article will set you well on the path to success with this subject. If you go to a store and are still unsure, ask the light expert at the shop so that you can be more confident with your purchase.
The most important point to remember is that a combination of blue and red light is best for plants, colors such as green and yellow however are not ideal. Full spectrum growth lights are sold with the whole light spectrum, as the light suggests, and you will never go wrong with them.
Happy gardening.
FAQ’s
How does the color of light affect plant growth?
The most important factor in determining plant growth is sunlight. Plants need light to grow. However, the quality of light that they receive has a huge impact on their growth. Light is made up of electromagnetic radiation. The wavelength or color of light determines the color of light. For example, red light (in the visible spectrum) is longer than blue light (in the visible spectrum), which is why many plants absorb it in heaps.
The color of light affects all life on Earth. Light is composed of electromagnetic radiation, including visible light, ultraviolet light, and infrared light. These wavelengths of light are absorbed by plant chlorophyll, which helps plants process sunlight and produce energy. When light is in the blue-green range, it is called blue light. When light is in the red-orange range, it is called red light. When light is in the green range, it is called green light.
When light is in the yellow-orange range, it is called yellow light. When light is in the violet range, it is called violet light.
How does color of light affect photosynthesis?
Color of light affects photosynthesis in a plant. Green and red light stimulate the plant to grow more. Blue light stimulates the plant to grow less. If the plant is not exposed to blue light, it will grow more than if it is exposed to blue light.
What color of light is most effective for plant growth?
The answer to this question depends on the type of plant and its position in the light spectrum. Plants use light to manufacture energy from the sun's rays, and they use light to make the food they need for survival. The light color that a plant needs is determined by its specific needs for growth and development.
Which plant uses blue light to grow more?
The answer is the plant fern. The plant fern is a small green plant that grows in moist soil. It is very similar to a plant called moss.
What color light is best for germination?
You can use any type of high intensity lighting you want, but the light spectrum emitted by your bulbs matters.
High-pressure sodium bulbs emit more blue light than other types of bulbs. This makes them effective at germination but not so good for later development. Halogen bulbs emit a lot of red and yellow light, which is useful for later growth but may not be effective for germination.
Red & Blue Light Combination
The red and blue light are a great combination and they are needed as your plant matures. They are especially required for both the vegetative and flowering stages. This red and blue light combination enhances the production of more leaves and crops.
Violet Or Purple Light
Violet light or purple light is an additional light that your plants can benefit from. These colors have the shortest wavelength and high energy which enables the plant to be able to absorb them well. The light energy in the violet color results in a sweet aroma, and great plant color, and is a flavor booster in vegetables and fruits.
Therefore, you can use this light at any stage of a plant to boost its color and improve its taste. Violet light will also enhance the number of antioxidants in a plant.
Greenlight
The effect of green light on plant growth is not so significant. The reason is that most plants are already green in color and thus will reflect green rather than absorb it.
Yellow Light
Yellow light does not have much effect on the growth of a plant. It is just like green lights which are difficult for plants to absorb.
Ultraviolet Light
Ultraviolet light is known to be harmful to humans. So, just as ultraviolet light is harmful to humans, high exposure is also bad for plants. Your plants will develop with little exposure to ultraviolet light.
How Do You Use Grow Lights For Outdoor Plants?
Light is an absolute necessity for any and every plant, and adequate light is a must for the efficient growth and production of any plant.
Sunlight is the natural and most used source of light for plants. However, sometimes plants even when planted outside may not be able to receive the adequate amount of sunlight that they require to grow. This could be for example, when plants are planted or grow under taller trees or a canopy of trees. It may also be if plants are in an area of a garden that receives short hours of sunlight exposure.
The use of grow lights outdoors is not very common but can be a good way to give plants supplemental light to help improve growth and productivity.
There are several considerations to keep in mind if you are going to use grow lights outdoors;
- Because these lights will be outside where they will be exposed to environmental conditions such as rain and winds, make sure you get waterproof and secure the lights properly to prevent them from blowing away.
- Be careful to position the lights in a place where they won’t get interference from other plants, shade, etc.
- Remember that you do not need to have to grow lights on at all times, put them on a timer so that your plants only get the light that they need. This will also help you save money.
What Plants Don’t Like Grow Lights?
Most plants need light (whether natural or artificial) to grow efficiently. This applies to both indoor and outdoor plants. Most plants would die without getting a bit of light exposure.
There are however certain plants that do well without light and are mostly planted as indoor plants, or in areas that do not have a lot of sunlight. These plants would be good for a beginner who is starting out or still learning how to take care of plants.
Here are some of these plants;
-
Bromeliad (Bromeliaceae)
-
Chinese Evergreen (Aglaonema)
-
Cast Iron Plant (Aspidistra elatior)
-
Dracaena (Dracaena)
-
Dumb Cane (Dieffenbachia)
-
English Ivy (Hedera helix)
-
Peace Lily (Spathiphyllum)
How Do You Put Grow Lights on Indoor Plants?
The best place to position grow lights on indoor plants is directly above the plants. This is so that the plants can grow upright.
If the lights are placed, for example on the side of the plant, it will lean towards it to “follow” the light which is not ideal. Placing the grow light on top of the plants will help ensure an even distribution of light to the plants. This is the best way to put grow lights on indoor plants.
How Long Should I Leave My Plants Under Grow Lights?
Grow lights do not need to be on all the time. The idea with them is that they should replicate the light conditions that would be provided by sunlight. They aim to create a similar day and night cycle as the natural one.
The length of time you should leave your grow lights on depends on how light-hungry your plants are. So do a bit of research to find out how much light your plant needs for optimum growth and health. Generally grow lights are left on for anywhere between 8-10 hours a day
How Far Should LED Grow Light Be From Plants?
The distance between LED grow lights and plants depends on the intensity of the light. For LEDs of 200 watts should be placed between 12-20 inches, and those of high wattage like 1000 watts should be placed 36-46 inches from the top of the plant.
Which Plants Can Grow in Artificial Light?
Plants such as:
- Pothos (Epipremnum aureum)
- Peace lily (Spathiphyllum wallisii)
- Cast iron plant (Aspidistra elatior)
- Peacock plant (Calathea makoyana)
- Snake plant (Dracaena trifasciata)
- Sword fern (Polystichum munitum)
- Philodendrons
- Peperomia
- Spider plant (Chlorophytum comosum)
all grow well under artificial light.
Does a Plant Grow Faster in Sunlight or Artificial Light?
A plant would grow faster under artificial light than in sunlight. This is because artificial light can be adjusted to best suit the needs of the plant at that specific time, and therefore help to improve the growth and production of that plant.
Why Is Green Light Bad For Plant Growth?
Some studies suggest that green light makes plants behave as if they’re growing in poor environments that have a lot of shade. This could be the cause of plants having stunted growth and development if this green light is used on them.
Green light is reflected by plants, which is why they appear green. And because this green light is reflected, plants absorb very little of it. Because of this, it is thought to have minimal to no use for plant growth, particularly in the processes of photomorphogenesis and photosynthesis.
The role of green light for plant growth is yet to be widely explored as there are no definitive studies on its importance.
Full spectrum LED lights include green light, it is however unclear how useful it is for stimulating growth.
– The topic has yet to be widely studied. While full-spectrum LED lights include green light, it’s unclear how useful green light is for stimulating plant growth.
Currently, many growers use green LEDs to check their plants for things such as pest infestations or damage during the dark cycle of plant growth. Greenlight mimics shade or moonlight, so these lights can be used without interfering with the plant’s cycle.
How Does Blue Light Affect Plant Growth?
Blue light is referred to as radiation and has wavelengths between 400 and 500 nm. This wavelength is in the visible spectrum and has high energy which greatly affects photosynthesis, plant growth, and flowering.
Blue light is not as efficient as other lights in the electromagnetic energy wavelength, it is however still necessary for the growth of plants.
Another important function of blue light is regulating the plant stomata. Stomata are the pores in the dermis or skin of the leaves and stems of plants, which are important for gas exchange. These pores open and close, allowing the intake of carbon dioxide and the release of oxygen. As this process is essential for photosynthesis, it makes blue light necessary.
The shorter wavelength of blue light makes it very important in the processes that increase vitamin levels in plants, the quality, as well as overall plant health. Used in conjunction with red light, blue light can serve as a regulator for plant flowering.
How Does Yellow Light Affect Plant Growth?
Yellow light by itself plays a trivial role in photosynthesis and therefore plant growth or flowering, it is, however, useful in combination with other colors.
Much of the yellow light is reflected together with the green light. Because of this, placing a plant under yellow light will stunt its growth and development. If seedlings are given yellow or orange light alone, they will not be able to create carbohydrates, and so will not grow well or thrive.
In one study, however, yellow light has been found to have a positive impact on bioactive flavonoid accumulation in some herbs. This could mean that it just has not been studied enough and its effects are not well understood yet.
What Color Makes Plants Grow Faster?
Having discussed in detail all these different colors and their roles in plant growth, you are now probably wondering what the best color for plants that will affect their growth is. Simply put, the best color is a combination of red and blue light. Red light helps to increase plant biomass. The blue light on the other hand controls the flow of chloroplasts in the cells, which is responsible for oxygen transmission and also regulates the stomata opening
Blue light is ideal for the early plant stage such as seedlings. As your plant matures, the red and blue light colors are combinations excellent for your plants’ growth. That is why red-blue grow light combinations are popular on the market.
Does The Color Of Light Affect Plant Growth? – Final Say
The colors of light contribute a lot during different growth stages in a plant’s life cycle. Knowing what color grow lights to purchase, and which to use for each growth stage, as well as knowing which colors to avoid is absolutely crucial to the success of your plants.
The extensive information provided in this article will set you well on the path to success with this subject. If you go to a store and are still unsure, ask the light expert at the shop so that you can be more confident with your purchase.
The most important point to remember is that a combination of blue and red light is best for plants, colors such as green and yellow however are not ideal. Full spectrum growth lights are sold with the whole light spectrum, as the light suggests, and you will never go wrong with them.
Happy gardening.
FAQ’s
How does the color of light affect plant growth?
The most important factor in determining plant growth is sunlight. Plants need light to grow. However, the quality of light that they receive has a huge impact on their growth. Light is made up of electromagnetic radiation. The wavelength or color of light determines the color of light. For example, red light (in the visible spectrum) is longer than blue light (in the visible spectrum), which is why many plants absorb it in heaps.
The color of light affects all life on Earth. Light is composed of electromagnetic radiation, including visible light, ultraviolet light, and infrared light. These wavelengths of light are absorbed by plant chlorophyll, which helps plants process sunlight and produce energy. When light is in the blue-green range, it is called blue light. When light is in the red-orange range, it is called red light. When light is in the green range, it is called green light.
When light is in the yellow-orange range, it is called yellow light. When light is in the violet range, it is called violet light.
How does color of light affect photosynthesis?
Color of light affects photosynthesis in a plant. Green and red light stimulate the plant to grow more. Blue light stimulates the plant to grow less. If the plant is not exposed to blue light, it will grow more than if it is exposed to blue light.
What color of light is most effective for plant growth?
The answer to this question depends on the type of plant and its position in the light spectrum. Plants use light to manufacture energy from the sun's rays, and they use light to make the food they need for survival. The light color that a plant needs is determined by its specific needs for growth and development.
Which plant uses blue light to grow more?
The answer is the plant fern. The plant fern is a small green plant that grows in moist soil. It is very similar to a plant called moss.
What color light is best for germination?
You can use any type of high intensity lighting you want, but the light spectrum emitted by your bulbs matters.
High-pressure sodium bulbs emit more blue light than other types of bulbs. This makes them effective at germination but not so good for later development. Halogen bulbs emit a lot of red and yellow light, which is useful for later growth but may not be effective for germination.
Different Color Grow Lights And Their Functions
Blue, red, green, yellow, and a couple of other light colors are essential in the plant’s life cycle. Let’s take a look at some of these colors and how they will affect the growth of your plant:
Blue Light
Blue light has a short wavelength and high energy in the color spectrum which makes it easy for plants to absorb it. It is very important for the early plant stage such as seedlings and some seeds may not germinate if this blue light is not present. This is the light to be used when your plants are beginning to sprout.
Blue light is easily assimilated by plants which they convert to energy to attain maturity faster. A blue light will also enhance the quantity of chlorophyll that is produced by your plant.
Red Light
Red light has a long wavelength therefore their energy level is not so great for plants. Now, red light is usually very effective on plants when combined with other light colors such as blue. The combination is ideal for mature plants that may be undergoing phases such as the flowering phase.
Hytekgro LED Grow Light 45W Plant Lights Red Blue White Panel
Red & Blue Light Combination
The red and blue light are a great combination and they are needed as your plant matures. They are especially required for both the vegetative and flowering stages. This red and blue light combination enhances the production of more leaves and crops.
Violet Or Purple Light
Violet light or purple light is an additional light that your plants can benefit from. These colors have the shortest wavelength and high energy which enables the plant to be able to absorb them well. The light energy in the violet color results in a sweet aroma, and great plant color, and is a flavor booster in vegetables and fruits.
Therefore, you can use this light at any stage of a plant to boost its color and improve its taste. Violet light will also enhance the number of antioxidants in a plant.
Greenlight
The effect of green light on plant growth is not so significant. The reason is that most plants are already green in color and thus will reflect green rather than absorb it.
Yellow Light
Yellow light does not have much effect on the growth of a plant. It is just like green lights which are difficult for plants to absorb.
Ultraviolet Light
Ultraviolet light is known to be harmful to humans. So, just as ultraviolet light is harmful to humans, high exposure is also bad for plants. Your plants will develop with little exposure to ultraviolet light.
How Do You Use Grow Lights For Outdoor Plants?
Light is an absolute necessity for any and every plant, and adequate light is a must for the efficient growth and production of any plant.
Sunlight is the natural and most used source of light for plants. However, sometimes plants even when planted outside may not be able to receive the adequate amount of sunlight that they require to grow. This could be for example, when plants are planted or grow under taller trees or a canopy of trees. It may also be if plants are in an area of a garden that receives short hours of sunlight exposure.
The use of grow lights outdoors is not very common but can be a good way to give plants supplemental light to help improve growth and productivity.
There are several considerations to keep in mind if you are going to use grow lights outdoors;
- Because these lights will be outside where they will be exposed to environmental conditions such as rain and winds, make sure you get waterproof and secure the lights properly to prevent them from blowing away.
- Be careful to position the lights in a place where they won’t get interference from other plants, shade, etc.
- Remember that you do not need to have to grow lights on at all times, put them on a timer so that your plants only get the light that they need. This will also help you save money.
What Plants Don’t Like Grow Lights?
Most plants need light (whether natural or artificial) to grow efficiently. This applies to both indoor and outdoor plants. Most plants would die without getting a bit of light exposure.
There are however certain plants that do well without light and are mostly planted as indoor plants, or in areas that do not have a lot of sunlight. These plants would be good for a beginner who is starting out or still learning how to take care of plants.
Here are some of these plants;
-
Bromeliad (Bromeliaceae)
-
Chinese Evergreen (Aglaonema)
-
Cast Iron Plant (Aspidistra elatior)
-
Dracaena (Dracaena)
-
Dumb Cane (Dieffenbachia)
-
English Ivy (Hedera helix)
-
Peace Lily (Spathiphyllum)
How Do You Put Grow Lights on Indoor Plants?
The best place to position grow lights on indoor plants is directly above the plants. This is so that the plants can grow upright.
If the lights are placed, for example on the side of the plant, it will lean towards it to “follow” the light which is not ideal. Placing the grow light on top of the plants will help ensure an even distribution of light to the plants. This is the best way to put grow lights on indoor plants.
How Long Should I Leave My Plants Under Grow Lights?
Grow lights do not need to be on all the time. The idea with them is that they should replicate the light conditions that would be provided by sunlight. They aim to create a similar day and night cycle as the natural one.
The length of time you should leave your grow lights on depends on how light-hungry your plants are. So do a bit of research to find out how much light your plant needs for optimum growth and health. Generally grow lights are left on for anywhere between 8-10 hours a day
How Far Should LED Grow Light Be From Plants?
The distance between LED grow lights and plants depends on the intensity of the light. For LEDs of 200 watts should be placed between 12-20 inches, and those of high wattage like 1000 watts should be placed 36-46 inches from the top of the plant.
Which Plants Can Grow in Artificial Light?
Plants such as:
- Pothos (Epipremnum aureum)
- Peace lily (Spathiphyllum wallisii)
- Cast iron plant (Aspidistra elatior)
- Peacock plant (Calathea makoyana)
- Snake plant (Dracaena trifasciata)
- Sword fern (Polystichum munitum)
- Philodendrons
- Peperomia
- Spider plant (Chlorophytum comosum)
all grow well under artificial light.
Does a Plant Grow Faster in Sunlight or Artificial Light?
A plant would grow faster under artificial light than in sunlight. This is because artificial light can be adjusted to best suit the needs of the plant at that specific time, and therefore help to improve the growth and production of that plant.
Why Is Green Light Bad For Plant Growth?
Some studies suggest that green light makes plants behave as if they’re growing in poor environments that have a lot of shade. This could be the cause of plants having stunted growth and development if this green light is used on them.
Green light is reflected by plants, which is why they appear green. And because this green light is reflected, plants absorb very little of it. Because of this, it is thought to have minimal to no use for plant growth, particularly in the processes of photomorphogenesis and photosynthesis.
The role of green light for plant growth is yet to be widely explored as there are no definitive studies on its importance.
Full spectrum LED lights include green light, it is however unclear how useful it is for stimulating growth.
– The topic has yet to be widely studied. While full-spectrum LED lights include green light, it’s unclear how useful green light is for stimulating plant growth.
Currently, many growers use green LEDs to check their plants for things such as pest infestations or damage during the dark cycle of plant growth. Greenlight mimics shade or moonlight, so these lights can be used without interfering with the plant’s cycle.
How Does Blue Light Affect Plant Growth?
Blue light is referred to as radiation and has wavelengths between 400 and 500 nm. This wavelength is in the visible spectrum and has high energy which greatly affects photosynthesis, plant growth, and flowering.
Blue light is not as efficient as other lights in the electromagnetic energy wavelength, it is however still necessary for the growth of plants.
Another important function of blue light is regulating the plant stomata. Stomata are the pores in the dermis or skin of the leaves and stems of plants, which are important for gas exchange. These pores open and close, allowing the intake of carbon dioxide and the release of oxygen. As this process is essential for photosynthesis, it makes blue light necessary.
The shorter wavelength of blue light makes it very important in the processes that increase vitamin levels in plants, the quality, as well as overall plant health. Used in conjunction with red light, blue light can serve as a regulator for plant flowering.
How Does Yellow Light Affect Plant Growth?
Yellow light by itself plays a trivial role in photosynthesis and therefore plant growth or flowering, it is, however, useful in combination with other colors.
Much of the yellow light is reflected together with the green light. Because of this, placing a plant under yellow light will stunt its growth and development. If seedlings are given yellow or orange light alone, they will not be able to create carbohydrates, and so will not grow well or thrive.
In one study, however, yellow light has been found to have a positive impact on bioactive flavonoid accumulation in some herbs. This could mean that it just has not been studied enough and its effects are not well understood yet.
What Color Makes Plants Grow Faster?
Having discussed in detail all these different colors and their roles in plant growth, you are now probably wondering what the best color for plants that will affect their growth is. Simply put, the best color is a combination of red and blue light. Red light helps to increase plant biomass. The blue light on the other hand controls the flow of chloroplasts in the cells, which is responsible for oxygen transmission and also regulates the stomata opening
Blue light is ideal for the early plant stage such as seedlings. As your plant matures, the red and blue light colors are combinations excellent for your plants’ growth. That is why red-blue grow light combinations are popular on the market.
Does The Color Of Light Affect Plant Growth? – Final Say
The colors of light contribute a lot during different growth stages in a plant’s life cycle. Knowing what color grow lights to purchase, and which to use for each growth stage, as well as knowing which colors to avoid is absolutely crucial to the success of your plants.
The extensive information provided in this article will set you well on the path to success with this subject. If you go to a store and are still unsure, ask the light expert at the shop so that you can be more confident with your purchase.
The most important point to remember is that a combination of blue and red light is best for plants, colors such as green and yellow however are not ideal. Full spectrum growth lights are sold with the whole light spectrum, as the light suggests, and you will never go wrong with them.
Happy gardening.
FAQ’s
How does the color of light affect plant growth?
The most important factor in determining plant growth is sunlight. Plants need light to grow. However, the quality of light that they receive has a huge impact on their growth. Light is made up of electromagnetic radiation. The wavelength or color of light determines the color of light. For example, red light (in the visible spectrum) is longer than blue light (in the visible spectrum), which is why many plants absorb it in heaps.
The color of light affects all life on Earth. Light is composed of electromagnetic radiation, including visible light, ultraviolet light, and infrared light. These wavelengths of light are absorbed by plant chlorophyll, which helps plants process sunlight and produce energy. When light is in the blue-green range, it is called blue light. When light is in the red-orange range, it is called red light. When light is in the green range, it is called green light.
When light is in the yellow-orange range, it is called yellow light. When light is in the violet range, it is called violet light.
How does color of light affect photosynthesis?
Color of light affects photosynthesis in a plant. Green and red light stimulate the plant to grow more. Blue light stimulates the plant to grow less. If the plant is not exposed to blue light, it will grow more than if it is exposed to blue light.
What color of light is most effective for plant growth?
The answer to this question depends on the type of plant and its position in the light spectrum. Plants use light to manufacture energy from the sun's rays, and they use light to make the food they need for survival. The light color that a plant needs is determined by its specific needs for growth and development.
Which plant uses blue light to grow more?
The answer is the plant fern. The plant fern is a small green plant that grows in moist soil. It is very similar to a plant called moss.
What color light is best for germination?
You can use any type of high intensity lighting you want, but the light spectrum emitted by your bulbs matters.
High-pressure sodium bulbs emit more blue light than other types of bulbs. This makes them effective at germination but not so good for later development. Halogen bulbs emit a lot of red and yellow light, which is useful for later growth but may not be effective for germination.
Eunice is an enthusiastic gardener with a passion for growing beautiful flowers. She loves nothing more than spending time in her garden, tending to her plants and enjoying the outdoors. Eunice has been gardening for over 15 years and has developed a unique style of landscaping that is both practical and aesthetically pleasing. She is especially fond of growing roses and enjoys experimenting with different varieties and colors. Eunice takes great pride in her garden and often shares the fruits of her labor with friends and family. In her spare time, she enjoys reading gardening magazines and attending local horticulture events. Eunice is passionate about her hobby and is always eager to share her knowledge and experience with others.
