The growth stages of marijuana can be broken down into four primary stages from seed to harvest:
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.
Notes on marijuana growth phases
Marijuana light cycle: 16 hours a day
If you’re growing weed indoors, you can grow whenever you like. Keep in mind that the outside environment will affect your grow space—you may need to add heaters in the winter or fans and ACs in the summer. Other than that, you can start seeds whenever you like and flip them into flower whenever you like, depending on how big you want the plants.
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.
You may already be set with some seeds and your grow room is ready to go. Great! In this case, there won’t be much prep time needed to start your grow. Otherwise, this period takes into consideration how long it will take to order and receive your seeds, as well as source any equipment such as potting containers and soil. This period will therefore vary depending on what you need, where you are buying from, the speed of your mail, etc. Expect the preparation time to take anywhere from 0–4 weeks if you still need some equipment before you can get started.
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:
A DETAILED TIMELINE ON CANNABIS GROWTH
This covers the entire cannabis life cycle from germination all the way through to harvest.
2. Seedling stage (10–15 days) – The “baby-phase” of your freshly sprouted cannabis plant.
• Vegetative stage
Time: 2–8+ weeks
These questions are probably best answered with the age old phrase, time is gold. Obviously a lot of the answers are quite subjective and we can’t give any absolutely concrete times, but we’ll do our best in this article to provide you with a general idea of how long a marijuana plant takes to grow.
It’s difficult to put a number on how long the growth period takes due to environmental and external factors (fertilizers and the grower’s expertise) that can interfere with crops. Generally, indoors autoflowering plants take about 3 or 4 weeks (21 to 25 days) and around 6 to 8 weeks, maybe more, for feminized strains.
First, you’ll have to differentiate between drying and curing; the first thing you’ll need to do with your freshly-cut harvest is dry it.
According to these estimates, marijuana takes about three months to grow completely for autoflowering versions, and four to five or more months for feminized strains depending on crop method and expertise. Don’t forget that drying and curing will take a month or two more.
Are you not sure how long marijuana plants take to grow? Well, the first thing we recommend is to have patience, something that applies to pretty much everything in life. Plants need enough time to grow and develop correctly, and time is what can tell a nice productive plant from a pile of branches lacking in both foliage and yield.