The color spectrum plays a major role in the growth process of plants. The right combination of colors can accelerate plant growth and development, while poor lighting can stunt its growth. Which is why it’s important to know what is the best color spectrum for plant growth.

The visible light spectrum has wavelengths ranging from 380 nanometers (violet) to 700 nanometers (red). This range contains all the colors of light that humans can see with our eyes. While we don’t have the specific wavelengths for plant lights, we do have plenty of general information about which lights are best for growing plants or accelerating their growth. Let’s take a closer look at the different spectrums and how they affect plant growth.

Blue Light Spectrum

The wavelength of blue light spectrum is 450 to 490 nm. It plays a role in improving the quality of the plant during its growth stage. You should use as much of the blue spectrum as possible during the vegetative phase of your plants. It signals plants to grow healthy, grow large leaves and become stronger. Plants that lack blue light often turn yellow or pale, weak and drooping.

Red Light Spectrum

The wavelength of red light spectrum is between 620-750nm. Of all the colors in the spectrum, red light spectrum produces the most heat, and it helps your plants grow taller because it stimulates the production of chlorophyll A. But too much infrared light can damage plants, cause discoloration or kill them completely, so you should pay special attention to this when choosing LED grow lights.

Green Light Spectrum

The wavelength of green light spectrum is between 520-565nm, and its role in plant growth is not obvious because it does not easily absorb chlorophyll, so green is also considered to be the least useful spectrum for plants.

So What Is the Best Color Spectrum for Plants Growth?

Taken together, you can see that the blue light spectrum has the greatest effect on plant growth, and it has a wide range of effects on improving plant quality – especially in leafy crops. Plant growing is a complex process, and you need to constantly record the spectrum that your plants lack at each stage of growth and find ways to add the spectrum they need. Of course, the best way is to choose a suitable LED grow light, such as Spider Farmer. Grow lights of Spider Farmer provide the ideal spectral range for plant growth: 400-700nm, these lights also have blue and red spectrum at the same time, escorting your plants at every stage of growth!