Are Purple Grow Lights Better

(Last Updated On: June 15, 2022)

There’s a lot of debate in the gardening world about whether purple grow lights are better than traditional white ones. Some say that the purple hue helps to stimulate plant growth, while others claim that it doesn’t make a difference. So, what’s the verdict?

There are a lot of different opinions out there about purple grow lights. Some people say that they are better for your plants, while others say that they aren’t necessary. So, what’s the verdict?

Are purple grow lights actually better for your plants? Here’s what we found out: Purple grow lights are said to be better for your plants because they emit a wider range of wavelengths.

This means that your plants can absorb more of the light, which can lead to better growth. However, not all experts agree that purple grow lights are necessary. Some say that regular grow lights will do the trick just fine.

Ultimately, it’s up to you to decide whether or not you want to use purple grow lights. If you think they will benefit your plants, then go for it! But if you’re not sure, you can always stick with regular grow lights.

Why Are Grow Lights Purple? Plus 3 KEY REASONS Why You Should Avoid Using A Purple Grow Light

Purple grow light vs white light

If you’re a seasoned indoor gardener, you know that grow lights come in different colors. But what does the color of a grow light actually mean? And more importantly, does it make a difference in plant growth?

In short, the answer is yes! The color of a grow light can have a big impact on plant growth. Here’s a breakdown of how different colors of light affect plants:

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Purple grow lights: Purple grow lights are rich in ultraviolet (UV) light. UV light is known to promote plant growth and flowering. That’s why purple grow lights are often used for flowering and fruiting plants.

White grow lights: White grow lights are rich in blue and red light. Blue light promotes vegetative growth, while red light promotes flowering and fruiting. That’s why white grow lights are often used for plants that are in the vegetative stage of growth.

So, which color of grow light is best for your plants?

are purple grow lights better


Should grow lights be white or purple?

Most grow lights are white, but some are purple. Each color has its own benefits and drawbacks. White light is more intense and can penetrate leaves better, making it ideal for growth stages that require lots of light, like germination.

However, it can also be more harsh on plants, causing them to produce less chlorophyll. Purple light is less intense and won’t penetrate leaves as well, making it better for growth stages that don’t require as much light, like flowering. However, it can also help plants produce more chlorophyll.

So, which color should you choose? It depends on what you’re growing and what stage of growth your plants are in. If you’re not sure, try experimenting with both colors to see what works best for your plants.

Do purple lights help plants grow?

If you’ve ever been to a nursery or garden center, you’ve probably seen rows of purple fluorescent lights glowing over the plants. But what are these lights for? Do they actually help plants grow?

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The simple answer is yes, purple lights can help plants grow. But why? The key is in the color of light.

Plants need light for photosynthesis, the process they use to convert sunlight into energy. But not all colors of light are equal. The color of light is measured in nanometers (nm), and plants use light in the blue and red parts of the spectrum.

Blue light is around 400-495 nm, and red light is around 620-750 nm. So, purple lights (which are a mix of blue and red light) are ideal for plants. They provide the right mix of light for photosynthesis, and they can help plants grow faster and healthier.

What color grow light is best?

There is no definitive answer when it comes to what color grow light is best. Each type of light has its own benefits and drawbacks that make it more or less suitable for different types of plants. For example, blue light is often used for plants that require high levels of light intensity, such as leafy greens, while red light is better suited for plants that need less intense light, such as flowers.

Some plant species are more sensitive to different colors of light than others. For example, red light is required for germination in some plants, while others may need blue light to flower. Therefore, it is important to research the specific needs of the plants you are growing before choosing a grow light.

In general, however, it is generally recommended to use a full-spectrum grow light, which emits all colors of the visible light spectrum, as this will provide the plants with the most complete range of light wavelengths.

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Do indoor plants need purple light?

No, indoor plants do not need purple light. While some plants may have a slight purple hue to their leaves, this does not mean that they require purple light. In fact, most plants do not need any specific color of light, and they will do just fine under standard white fluorescent light bulbs.


There are many different types of grow lights available on the market, and each type has its own advantages and disadvantages. One type of grow light that has been gaining popularity in recent years is the purple grow light. Purple grow lights are said to be better for plant growth because they emit a wider range of wavelengths than other types of grow lights.

This means that purple grow lights can provide plants with more of the light they need for photosynthesis. Purple grow lights are also said to be better for plant health because they emit less heat than other types of grow lights, which can help to prevent heat stress in plants. While purple grow lights do have some advantages, they also have some disadvantages.

One of the biggest disadvantages of purple grow lights is that they are very expensive. Purple grow lights also tend to be less bright than other types of grow lights, which can make it difficult to see your plants when they are under them.

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