What light spectrum is best for flowering?
Red light
Red light (640nm-680nm) Red light affects phytochrome reversibility and is the most important for flowering and fruiting regulation. These wavelengths encourage stem and vegetative growth, flowering and fruit production, and chlorophyll production.
Do you need a blue light to grow marijuana?
Blue light is critical for cannabis. If blue light levels are low, cannabis plants experience a shade-avoidance syndrome that causes them to stretch. And that’s why it’s important to include blue whenever you’re providing plants with high-intensity broad-spectrum light that includes lots of green.
Do my plants need red or blue light?
While red is most efficient for photosynthesis, having only red light would result in poor growth such as very elongated stems, so blue is added to keep plants compact and a more typical shape.
What color light is best for seedlings?
Blue light
Light Color Red light stimulates vegetative growth and flowering (but if a plant gets too much, it will become tall and spindly). Blue light regulates plant growth, which makes it ideal for growing foliage plants and short, stocky seedlings (but too much will result in stunted plants).
How far should my T5 LED lights be from my plants?
Although T5 lights are famous for emitting very little heat, this doesn’t mean you can put the bulbs an inch above plant canopies, as this distance will still damage the plants. The best height for a T5 grow light is about 6-8 in. above the plants, but you should increase that gap to 12 in.
What is the best light spectrum for marijuana?
The best light spectrum during vegetation is none other than the Blue spectrum. This color spectrum reaches between 400 and 500 nm. If you are an outdoor marijuana grower, then the Sun will do all the job of supplying your green babies with the best light spectrum they need.
What is the best grow light spectrum?
The most significant findings from the experiment are: The Red/Blue and MIGRO (3500K) spectrum are best for balancing yield and short stem length. Green light and Red light are closely matched for photosynthetic efficiency (within 5%) You need at least 12% Blue light to prevent stretching.
How does light spectrum affect plant growth?
The wavelength of the light that reaches the surface of plants, and its position along the full spectrum of the colors of light, affects different aspects of the growth of plants. A regular incandescent light bulb emits light at the warm end of the light spectrum, whereas fluorescent light bulbs emit light at the cool end of the light spectrum.