what color light do plants grow best in?

Answer 1

Sunlight

Answer 2

Plants actually need a full spectum of light in which to completely develop. Different genes in the plant are turned on in response to diffrent colors of light - some make the plant grow tall, others influence leaf development, etc. This is why "full spectrum" bulbs are sold for use in greenhouses, and these look white to us. The best color of light for a plant would be white, which contains all colors in equal intensity.

Answer 3

Plants can grow just as well, if not better, under electric light than with
sunlight if the amount, quality, and duration of the light are optimum. The
quality of light is the wavelength composition. Sunlight has a roughly equal
amount of light of all colors. An incandescent bulb produces much more red than
other colors. Flourescent lamps, such as the standard Cool White, has less red
than sunlight or incandescent and may produce slightly shorter plants.

The best types of electric light for plant growth are fluorescent and high
intensity discharge lamps (HID). HID lamps are of several kinds including high
pressure sodium, a type often used in street lights. Incandescent light
produces a lot of heat and not much light so is not as good for plant growth.

It is difficult to fairly compare sunlight and electric light because it not
easy to get the same amount of light from each source. It is easier to compare
different types of electric light, such as Gro-lux versus Cool White
fluorescent bulbs.

It is also easy to compare light amount and duration with one, two or more
fluorescent light banks. Timers can be used to change the duration, for example
12 versus 18 versus 24 hours of light per day. Plants can be set at different
distances beneath a fluorescent light bank to give differing light intensities.

I do not recommend experiments that use colored cellophane to grow plants under
different light colors because it requires expensive equipment not available to
students in order to get the same amount of light for each color. Without
having the same amount of light for each color, you cannot know if plant growth
is affected by light color or light amount.

Answer 4

In general....... Off a foot or two from the direct sun light . So they can still see the suns ray but not feel the direct hit of it on their delicate leaves.
...In general of course.

Answer 5

Ultra Violet.