Can you use a UV light to grow plants?
Considering this, do you need UV light to grow plants?
The answer is Yes. Plants don't require UV light to photosynthesize their food. The reason is that UV light falls within the electromagnetic spectrum which is outside the visible or photosynthetic active radiation band. UV-A can increase the level of nutrients from plants, therefore, plants will be tastier.
Subsequently, question is, how much UV light does a plant need? Plants are usually green because green absorbs yellow light best, and yellow is there the peak of solar output is. Of course, they absorb other wavelengths too, but not as much. By the time you get to UV the absorption is very small. So no, plants do not make much use of UV for photosynthesis.
Likewise, is UV light bad for plants?
UV light, particularly UV-B light can cause DNA damage to many organisms, including fungi. UV light affects plant growth and development in many ways. Because UV light has a strong potential for damaging DNA, plants can defend themselves via physical and chemical “sunscreens”.
Can grow lights hurt plants?
Myth #14: LED Lights Can't Damage Plants The reality is that modern LED grow lights can produce a very high level of light and it can cause photo-bleaching and burn leaves. This depends very much on the plant, but a PPFD of 800 is enough to damage some plants.