Once you’ve planted your freshly sprouted seeds with the first set of embryonic leaves (cotyledons) popping out of the shell, this is when the seedling stage of cannabis begins. These baby plants are only a few centimetres tall and have just one or two sets of tiny leaves. It will still take some days until your seedling will start to look like an actual cannabis plant with the typical serrated leaves. The seedling stage will normally last 10–15 days or until your young cannabis plant has grown 3–4 leaf nodes. Around this time, your plant will officially enter the vegetative growing stage.
Your cannabis plant’s vegetative growing stage starts at about the time when it has outgrown its seedling pot and is ready to be transplanted into a larger pot.
2. Seedling stage (10–15 days) – The “baby-phase” of your freshly sprouted cannabis plant.
A DETAILED TIMELINE ON CANNABIS GROWTH
How long you can keep your cannabis plant in the veg stage will primarily depend on how much space and energy (electricity) you have. Obviously, you want your plant to grow as big as possible so you can enjoy a big harvest, but you also don’t want it to get so tall that it outgrows your tent or grow space. Having an approximation of your plant’s final height is essential in this case, as some spindly sativas can easily double their height during the flowering stretch. The same goes for some modern hybrids and even indicas.
Germinating your seeds is the first “serious” step when growing weed. If something goes wrong with germinating, such as low-quality or old seeds that won’t “pop”, there won’t be much to grow after all. But you needn’t worry if you get your seeds from RQS, as our cannabis seeds are among the best-quality specimens on the market with the best germination rates.
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.
• 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:
Some growers even use germination stimulators that work with the seeds initial metabolism and reduce the germination time to about a day in most cases.
This process can take anywhere from two to six weeks. The main indication of a proper curing is that the bud crunches when pressed in slightly, if you bend the stem it breaks water than bends, and the intense green color should fade, as well as the leafy green smell.
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.
After managing to get your sapling to sprout and transplanting it (into soil or a jiffy), the growth period begins. Just like the name says, your plants will grow the most it’s ever going to grow and stretch upwards during this period, allowing it to get the correct shape and size to proceed to the next stage; flowering.
This is also called the vegetative phase. It’s the main period of growth that your plant will go through, and probably the most important.
When you start with a seed, even with an auto-flowering plant, you will always have at least 3-4 weeks of vegetative growth before any buds start forming no matter what you do. Growers generally allow their plants to stay in the vegetative stage from a few weeks to a few months.
Some people put their seedlings or clones right into the flowering stage if they want to harvest quickly though this makes for extremely small plants. For example, super-stealth growers who are growing in small hidden spaces – like out of a computer case – would want to put their seedlings into flowering nearly right away to keep their plants as small as possible. It’s also important to remember that container size and grow lights make a big difference. Small containers constrain the roots and keep plants from getting as big as they could, and small lights prevent buds from fattening up as much as they could.
Before You Start Growing Weed
These cannabis plants were vegetated for about 8 weeks before being flipped to the flowering stage. Although they were grown in the exact same conditions from seed to harvest, their final heights are remarkably different because their strains had vastly different genetics. The smaller plant produced 6.6 ounces, while the big plant produced 9.3 ounces. Strain can make a big difference! Learn about growing different strains together.
Additionally, for at least the first time you grow, you also need to consider the time needed to get your equipment and seeds/clones.
This human-sized plant (one of my very first plants) spent a little more than 3 months in the vegetative stage before I realized I needed to turn it over to the flowering stage. It then spent another 12 weeks in the flowering stage before it was ready to harvest because it was a long-flowering strain. It got way too tall for its space (taller than me!) and started falling over. However, despite the huge size and more than 5 months of growth, it only ended up yielding about 6 ounces. This is because it was under weak CFL grow lights. Though there were a lot of buds, the lack of strong light made them airy, without a lot of weight. Click the picture for a close-up. ?