Red and blue light is essential for plants to grow, in fact, they are the most utilized by plants. Blue light stimulates chlorophyll production and encourages healthy plant growth. It’s a common practice to use a bluer spectrum light to help prevent plants from stretching too tall before switching over to flowering and fruit production.

Photoreceptors in plants are sensitive to the red light and the phytochrome pigments absorb the red and far-red portions of the light spectrum. They’re primarily known for boosting flowering and fruit production and will tend to make plants grow taller.