Which Color Light Is Best For Plant Growth

Red light 630 660 nm is essential for the growth of stems as well as the expansion of leaves this wavelength also regulates flowering dormancy periods and seed germination.

Which color light is best for plant growth. With these lights you can actually mimic the growth you would get in a greenhouse or outdoors. Multiple studies have been conducted on how different colors of lights can have varying effects on the growth of a plant. As the full spectrum light has 45 green light it clearly shows that the green light is contributing to plant growth. Otherwise the yield would be at least 45 less than the red grow.

Grow lights should provide the proper spectrum of light for photosynthesis which key to plant growth. Take a look at the diagram above. Thanks to the recent developments in led light emitting diode grow light technology specific light wavelengths can now be isolated in order to control the different physical properties that a plant displays as it develops throughout its life cycle. The ideal ratio is somewhere around 5 1 red to blue.

Plants grow best when they are exposed to light that is as similar to natural sunlight as possible which is between 2 700 and 7 000 kelvin. Red light in the 610 720 spectrum range promotes flowering and budding. But it does vary depending on the plant and the stage of growth. Led grow lights are often full spectrum meaning you don t have to change the light as your plant enters the flowering and fruiting stages.

Lec lights provide the full spectrum. Violet blue light in the 400 520 nanometer range encourages chlorophyll absorption photosynthesis and growth. Colors on either end of the spectrum play the greatest role in plant growth and flowering. In the old days growers would use red and blue colored led s to give plants this full spectrum of light that they need to grow.

When growing most houseplants use light bulbs between 4000 and 6000 kelvin as the bulb s color temperature will borrow from a full spectrum of colors cools and warms. For the best all around growth for all parts of a plants life cycle your led lighting should contain some. Led and t5 fluorescent lights can either be blue or red or can have a blended spectrum. The leaf colour thickness and overall look of the lettuce was much better with full spectrum light compared to the other grows.

As mentioned plants grow best under a mix of red and blue light. Different colors do different things. Nasa has done extensive work on the light used by plants and they have determined the following.