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weed seed growing stages

Be mindful to increase your watering as the plant develops. When it’s young, your plant will need water close to the stalk, but as it grows the roots will also grow outward, so start watering further away from the stalk in the soil so roots can stretch out and absorb water more efficiently.

Be very careful to not overwater the plant in its seedling stage—its roots are so small, it doesn’t need much water to thrive.

The first marijuana plant stage begins with the seed. A cannabis seed should feel hard and dry, and be light- to dark-brown in color. An undeveloped seed is generally squishy and green or white in color and likely won’t germinate.

Vegetative stage

Harvest happens sometime between September and November. This depends on your local climate, as well as the weather that particular year—one year it could be the end of September, the next, end of October, and growers in the Pacific Northwest will have to pull down their crops earlier than those in Northern California.

The weather will start to turn and the sun will begin descending in the sky as your plants fatten up with sweet, sticky buds. It might be tempting, but wait until around the Fall Equinox to start harvesting.

Vegetative stage length: 3-16 weeks

Marijuana light cycle: 16 hours a day

As with curing, glass jars make ideal storage units for cannabis if you plan on using the cannabis soon. Long-term storage of up to two years necessitates vacuum sealing of containers to keep the weed as fresh as possible. Even in the most tightly sealed jar, cannabis can lose some THC content the longer it is stored. This is one reason why you might like to clone your excess cannabis and begin the growing cycle again.

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. Photo by: Gina Coleman/Weedmaps

To continue the weed life cycle, you can purchase more seeds or you can breed and clone your cannabis during a final preparation stage. Start growing a whole new cycle of cannabis by choosing a branch that is at least four inches long and cutting it off from your most fertile crop. Then, plant the branch into a rooting solution to grow a new batch of plants that will be genetically identical to the ones you just harvested.

Cloning Cannabis

Patience pays off at the end of the pruning stage when you can consume the cannabis you’ve cultivated and effectively store any leftover weed for future use.

Duration: 3 to 8 weeks

Duration: 6 to 8 weeks

Duration: Varies; Harvesting generally takes place in fall for outdoor plants but can occur any time of year for indoor plants.

It’s always best to evaluate if a cannabis plant is ready to harvest by taking a closer look at those resin dripping buds. Using an inexpensive scope to zoom in on those resin heads to make sure they are milky and amber rather than clear removes all the guess work.

Of course Autoflowering strains don’t follow the rules due to their Ruderalis genetics, so they will begin to bloom in about a month post-germination. Auto’s prefer to stay in 18+ hours of light for flowering and will be more productive on a light-dark cycle that would inhibit photoperiod strains from blooming at all.

Another sign that your buds are maturing is when the pistils of the flowers change colour. Pistils are small-hair like structures that grow out of the calyxes, and are the reproductive organs of the female cannabis plant. They are the site where pollination occurs—if male pollen were allowed to land there. Pistils appear bright white during the early stage of the grow cycle, and eventually shift to an orange-brown colour.

STAGE 3: VEGETATIVE PHASE — 2–8+ WEEKS

Flowering generally lasts 7-10 weeks for indica and hybrid photoperiod cannabis strains, while the more Sativa dominant strains can take 10-14 weeks to fully ripen into primo head stash.

This is the point where it starts to look more like a cannabis plant. There will be one ridged blade per leaf at first, but the blades will get closer to their typical 5–7-finger stage by the end of this period. Until they get the full 5–7 blades, though, the plants are considered seedlings. Along with the increasing blade count, a vibrant green colour is another mark of a healthy plant. To keep them healthy, the two main things to keep an eye on are water and cleanliness. Seedlings are still fragile, so only light watering is necessary. Cleanliness is equally vital due to their disease and mould vulnerability. The perfect home for cannabis seedlings is a propagator, ideally with 70% RH and temps 20-25°C, under either white CFL lights or LED’s.

Once you confirm you’ve got a ripe marijuana crop on your hands it’s time to break out the trimming scissors and get harvesting. After two weeks slow drying in paper bags or hung up, at room temp and approximately 50% RH, you’ve got a stash.

Outdoors Mother Nature dictates the grower’s schedule and flowering will only commence in Summer/Autumn as the hours of daylight naturally diminish, making for a longer more gradual flowering period. Weed growers in the Northern hemisphere don’t refer to October as “Croptober” for nothing.