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how long does it take to grow weed from seeds

The flowering stage is the final stage of growth for a cannabis plant. This is when plants start to develop resinous buds and your hard work will be realized. Most strains flower in 8-9 weeks, but some can take even longer, especially some sativas.

Two rounded cotyledon leaves will grow out from the stem as the plant unfolds from the protective casing of the seed. These initial leaves are responsible for taking in sunlight needed for the plant to become healthy and stable.

The Spring Equinox is a good reminder that it’s time to kick off the outdoor growing process and start germinating your seeds.

Flowering 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.

At this stage, the plant is vulnerable to disease and mold. Keep its environment clean and monitor excess moisture. Be sure to give it plenty of light.

Flowering stage length: 8-11 weeks

Marijuana light cycle: 16 hours a day

In this article we will discuss the typical development time of the plant, as well the different phases the plant goes through before it is ready for harvest. We offer you a thorough overview for each phase of the plant so that you will soon know exactly which paths to take to determine the development time of a cannabis plant.

Autoflower strains begin to flower automatically. The plant does so when it is ready (usually after 4 weeks of growth). However, this is not true of photoperiod strains. In fact, these strains need light stress to flower. This happens in nature (and in an indoor grow) once they receive 12 hours of light and 12 hours of darkness per day.

What factors determine how long it takes to grow a marijuana plant?

This process generally takes between 2 and 6 weeks. Ripening is complete when the bud cracks when you gently pull it.

Your weed is dry when you try to bend the stem where the buds are. Do you hear crackling without the stem breaking? Then your buds are dry enough for the next step, which is ripening

Flowering is the final development period of the cannabis plant. The start of this phase depends not only on the growth time you give the plant, but also whether the plant has the right characteristics to support the precious buds it will develop during this phase.

• Germinating your seeds
Time: 1–7 days

4. Flowering stage (5–16+ weeks) – This is the reproductive stage of cannabis when it begins producing buds. How long your cannabis needs to ripen its flowers greatly depends on the strain you are growing. Fast-flowering indicas can be ready after about 55–60 days of flowering, whereas some sativas could take a few months for their buds to ripen.


In this guide, we will look at the different stages involved with growing feminized photoperiod cannabis indoors. As we want to give you an idea of what to expect from the moment you decide to start growing to when you can finally enjoy your self-grown stash, we are also including preparation time and drying and curing time for your weed post-harvest. The following are the stages of a typical cannabis indoor grow:

3. Vegetative stage (2–8+ weeks) – The vegetative stage could last indefinitely if we’re talking photoperiod (non-autoflowering) strains. Most growers let their plants vegetate for a month or two, or until their plant has a reached a certain size. Bigger plants can mean bigger yields, but how long you veg depends on available growing space.

• Flowering stage
Time: 5–16+ weeks