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stages of cannabis growth from seed

Seedling stage length: 2-3 weeks

Cannabis plants are considered seedlings until they begin to develop leaves with the full number of blades on new fan leaves. A healthy seedling should be a vibrant green color.

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.

What are a weed plant’s growth stages?

As the sun reaches up high in the sky, your cannabis will want to as well. Make sure all of your plants are outside by the Summer Solstice.

If you need to determine the sex of your plants (to discard the males), they will start showing sex organs a few weeks into the veg stage. It’s imperative to separate males so they don’t pollinate the females.

If you’re growing outdoors in the Northern Hemisphere, growers usually get their seeds between February and April, and you should start your seeds by the end of April. Some growers will start their seedlings inside in a more controlled environment because seedlings are more delicate, and then put their seeds in the ground outside once they’re a little bigger. If you’re growing clones or autoflowers, you have a grace period of another month or so. Plants usually need to be outside, in the ground, by the end of June.

Marijuana light cycle: 16 hours a day

The harvesting stage is when you reap the rewards of your careful planting and cultivation. Photo by: Gina Coleman/Weedmaps

The end of the flowering stage marks an eagerly anticipated milestone in the growth process as you prepare to harvest your crop.

Of course, if you were not satisfied with your harvest, then breeding and cloning would not be a good choice. Perhaps the strain you chose was too potent, or not potent enough, for your preferences. In this case, revisit an online seed bank and take the opportunity to learn the difference between strains. Explore your options and you’ll not only educate yourself about the growth process but you’ll also enjoy the ride.

Harvesting Stage

Whether you use the wet or dry method of pruning, you will need to fully dry the cannabis before proceeding with curing and storage. To dry cannabis, hang the cuttings upside down, perhaps on a clothesline and most definitely in an environment that is not overly moist. Once the plants have dried, you will be ready to complete the last steps of the pruning process.

Is it ever too late to harvest a marijuana plant? If the stem is swollen and all the yellow leaves have fallen off, then it is too late to harvest the marijuana. Cannabis at this late stage will likely taste and smell unpleasant, possibly bitter. As a general rule, it is preferable to harvest earlier rather than later. Prematurely harvested weed has not reached its maximum potency, but it will probably taste and smell more desirable than that which has become overripe. So, invest in a hardy pair of scissors and harvest your weed when the time is right!

Indoor cultivators have the flexibility to plant their cannabis seeds any time of year, as long as long as indoor conditions are managed with regard to temperature, humidity, light, and air quality. Light management is especially important as plants cannot survive without the right amount of photosynthesis. In an outdoor garden, natural sunlight does all the work, but indoors you’ll need to invest in a lighting system, such as LED lights or high intensity white light.

During the seedling stage you will notice your cannabis plant sprouting from the soil and growing a pair of leaves that fan outward from the stem. Photo by: Gina Coleman/Weedmaps