Outdoors, flowering occurs naturally when the plant receives less light each day as summer turns into fall. Indoor growers can trigger the flowering cycle by reducing the amount of light marijuana plants receive from 16 to 12 hours a day.
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.
As roots develop, the stalk will rise and you’ll begin to see the first iconic fan leaves grow, at which point your cannabis plant can be considered a seedling.
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.
Within the flowering stage, there are three subphases:
Generally speaking, it takes anywhere from 10-32 weeks, or about 3-8 months, to grow a weed plant from seed. It’ll be quicker if you start with a clone or an autoflower seed.
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.
Once your plant is harvested, there is a drying and curing process which takes about a minimum of two weeks before your buds are “ready” for use.
Depending on how you set up your grow, it can take anywhere from 2 months to 6 months or more to grow a marijuana plant from a seedling to the point where the plant is ready to harvest. Some methods, such as growing hydroponically indoors, give your flexibility to get a harvested plant in as little as 2-3 months. Growing outdoors generally takes longer than growing indoors and is more dependent on when you plant your seeds and how long your growing season is.
One of the fastest grow methods is growing marijuana with bubbleponics, which shaves a few weeks off the total time and will actually increase your yields, but it requires a bit more equipment to get started.
Additionally, many growers prefer to ‘cure’ their buds for longer than the 2-week minimum for added flavor and bag appeal, which accounts for why some grows could take several months from seed to smokable harvest.
Important Milestones in the Marijuana Plant’s Life
From Day 1 of your marijuana plant’s life to a Smokable Harvest, you’re looking at 8.5 weeks – 7+ Months. Many factors will affect the total time, but the average grow takes 3-4 months.
How to grow marijuana as quick as possible:
• Time after harvest (2–4+ weeks) – After you’ve harvested your plants, you still need to dry and cure your buds before you can enjoy them.
• Vegetative stage
Time: 2–8+ weeks
THE GROWING STAGES OF CANNABIS
If you’re growing photoperiod cannabis under 18 hours of light and otherwise suitable conditions, there is nothing that will tell your plant when to enter flowering.
2. Seedling stage (10–15 days) – The “baby-phase” of your freshly sprouted cannabis plant.
• Time to grow cannabis (8 weeks–7+ months) – The time needed to grow weed from the moment you germinate your seeds until harvest; includes the four growing phases of cannabis: