What Is The Best Color Light For Plant Growth?

In my last post, I talked about the best color lights for reading and studying. Now, it is only fair to feature color for plant growth. Indoor plants are great for your health and add to your home’s interior setting.

Studies have proven that indoor plants reduce stress level and productivity. Also, in research done by NASA, they claim plants can clean the air, removing 87% of air toxin in 24 hours. Plants use light for photosynthesis, this is done with chemicals found in the leaves.

So, for healthier plants, the best color for plants is a full spectrum of lights. While some plants will favor one or more different hue, each light color has its benefits.

I will further discuss this below:

How Do Plants Use Lights?

As I mention earlier, plants use light in a process called photosynthesis to make food. They trap the light in their leaves with most plants containing a chemical called chlorophyll. Chlorophyll absorbs the sun’s energy and turns it into energy for itself.

Most people believe plants strive under red and blue lights only, but this is just a myth. A plant can grow in many other hues, with green and yellow being one of them. According to a study by the Chinese Academy of Sciences, plants need to be in an environment where they can receive a wide range of lights.

Why does blue light help plants grow?

Not to give only red and blue lights all the credits, but blue light is essential to plant growth. Blue lights refer to the wavelength between 400-500nm. It has high energy and studies have shown it helps with flowering and plant growth.

While it may not be as effective as red or green lights, you will still need it for indoor plants. This color controls both the water and intake of carbon dioxide, even in its lowest setting.

Furthermore, plants that are exposed to blue light have thicker, healthier leaves than plants that don’t.

Why is red light good for plants?

Similar to the color blue, a red light on indoor plants help with plant growth and flowering. This color can increase leave size and capture more light. Similarly, plants that are given red lights speed up its Phytochrome conversion, in turn, decreasing the time the plant takes in night states, producing a better yield.

The effects of green lights on plants

Do not underestimate the impacts of green light on plants. Researchers have found that the color green has a stronger penetrating power than the popular red and blue lights.

This color infiltrates the leaf, improving photosynthesis by interacting with chloroplasts buried deep in the plant. However, you don’t have to immediately change your LED bulb to green by adding a small amount of green light to the grow spectrum you will receive all the benefits this color provides.

Is purple light good for plants?

Purple light helps your plants flourish and is a much shorter wavelength than red light. Purple will also assist during the vegetative growth process. This light source is very energetic, and your plants can use all the energy it can get, but it isn’t very successful on its own.

The best-LED lights for plants

purple color under plants

There are many lights to choose from with plenty of manufacturers claiming their product is the best in the market. For this section, I will focus on personal experiences, customers reviews and recommendations.

If you are looking to grow your plants indoors, purchase the EZORKAS 9 Dimmable Levels Grow Light. With 18,000 reviews, this is one of the most used lights amongst beginners and expert alike. It is sturdy and has strong clamps that stay perfectly in place. You can adjust the lights to any angle to suit all your plant’s needs.

The EZORKAS features a lot of spectra and intensity choices. Plus, it has ten brightness setting which turns off automatically after 24 hours. It is expensive but long-lasting, and your plants will flourish under this grow light.

To recap, give your plant a wide range of colors, including red, blue, green and purple. While red and blue is a common choice, there are many new studies that show plants need a full spectrum to grow.

I am a wife and mom with two kids. I am also a writer, avid DIYer, and tech enthusiast. My favorite things are writing, shopping online for gadgets, and gizmos I can’t afford (yet). Being at home with my kids is the best part of my day!

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