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Written by Neal Brown . Updated: March 7, 2021

Taking a Look at the Cannabis Light Cycle

With marijuana now becoming increasingly legal across the nation, more people are thinking of growing their own cannabis gardens at home. It’s not an overly difficult endeavor. After all, marijuana is a hardy plant with strains growing wild around the globe. Some spring up and thrive in even the harshest growing conditions.

Still, to get the highest possible yields and quality out of your cannabis seeds, you need to know what it needs to flourish. Nutrients, water, and air are all vital resources for marijuana to draw from, but light is one of the most crucial elements to consider. Fully understanding the cannabis light cycle and how it affects the plants will make a significant difference in your crop.

Cannabis Craves Light

Like all plants, marijuana requires light to complete the process of photosynthesis. Without light, cannabis plants can’t transform nutrients into the energy they need to grow, produce buds, and generate THC and CBD. Light also helps encourage your plants to draw in carbon dioxide for food and give off oxygen.

As a photoperiodic plant, marijuana also relies on light for another critical purpose. It looks to the light to tell it when to grow taller and branch out and when to redirect its energy to flowering. Of course, light, in general, isn’t the only factor here. These plants need specific types and amounts of illumination to complete their lifecycles. For the purposes of this article, we will discuss light’s impact on photoperiodic plants only. There are of course autoflowering strains available that can flower in almost any kind of light schedule – but we will cover this in another article.

Digging Deeper into Cannabis’ Dependence on Light

In nature, cannabis plants enter various stages of their lifecycles based on light. After germination, the tiny seedlings peek out from the soil in search of sunlight. Ideally, this should take place in early spring.

Light schedule For Cannabis

Best Light Schedule For Autolowers

12 12 Light Cycle From Seed