Which Color of Light Helps a Plant Grow Faster: Red, Green, or White?

Plants use light primarily in the red and blue spectrum. White light contains both red and blue, so plants grow better in white light than in red or green alone. Plants use very little green light. Red light promotes flowering but, used alone, will not sustain the plant.

Keywords: plant light use, colored grow light, light growing colors

About this Author

Diane Watkins has been writing since 1984, with experience in newspaper, newsletter and web content. She writes two electronic newsletters and content around the web. Watkins has a Bachelor of Science degree in chemistry from Clemson University. She has taken graduate courses in biochemistry and education.