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cannabis seeds pictures

Marijuana light cycle: indoor—16 hours a day; outdoor—at least 6 hours of direct sunlight (“full sun”), plus several hours indirect sunlight

Within the flowering stage, there are three subphases:

The biggest variability in how long a marijuana plant takes to grow will happen in the vegetative stage—after the seedling phase and before flowering.

Seedling stage

It’s important to know these stages and how long each lasts to know what the plant needs and when. Knowing where your cannabis plants are in their life cycle will dictate when to prune, train, and trellis your plants, and when to harvest.

We can’t stress enough that the timeframes in the above graphic are ranges of time for the Northern Hemisphere. You’ll need to adjust them based on your specific region and local weather and climate.

When your marijuana plant becomes a seedling, you’ll notice it developing more of the traditional cannabis fan leaves. As a sprout, the seed will initially produce leaves with only one ridged blade. Once new growth develops, the leaves will develop more blades (3, 5, 7, etc.). A mature cannabis plant will have between 5 or 7 blades per leaf, but some plants may have more.

The growth stages of marijuana can be broken down into four primary stages from seed to harvest:

Farmer Holding a Cannabis Plant, Farmers are planting marijuana seedlings.

cannabis seeds and green leaves isolated

Cannabis seeds on white background

Scientific research of medical cannabis for use in medicine

marijuana, Cannabis seedling, A small plant of cannabis seedlings at the stage of vegetation planted in the ground in the sun.