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weed seed growth time

This means you could theoretically veg your photoperiod cannabis plant as long as you want. This is also what many growers do to keep their mother plants viable for a long time. But unless you’re growing mothers, you will normally want to veg your plants until they have reached a certain height, before initiating flowering by switching your timer to 12 hours of light and 12 hours of darkness.

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.

• Seedling stage
Time: 10–15 days

PREPARATION TIME BEFORE YOU GROW

To germinate your seeds, you can use the Royal Queen Seeds Starters Kit Feminized for optimal results. Growers also germinate using the “paper towel method”, or they put seeds in a glass of water and wait for them to sprout. Alternatively, you can just place your seeds directly in soil in a seedling pot, or even germinate them right in their final container. With good seeds, it won’t take more than 2 days until the taproot of your seeds will show, although some sativa seeds can take longer to sprout, up to 4–7 days. The time required for germinating seeds can also depend on other factors, such as temperature. It is unlikely, however, for seeds to take longer than 7 days to pop.

Now that you have an idea of how long it will take to grow weed indoors, we can start to break down some of the specifics so you can get the most out of your operation.

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.

Time: 8 weeks–7+ months

If you’re growing indoors, you can force a weed plant to flower after only a few weeks when it’s small, or after several weeks when it’s big. If you’re growing outdoors, you’re at the whim of the seasons and will have to wait until the sun starts to go down in fall for it to flower and then to harvest.

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.

How long does it take to grow a marijuana plant?

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.

Buds typically grow the most toward the end of the flowering life cycle. You probably won’t notice much budding out at the beginning of the flowering stage, and it will slow down toward the end of the cycle, when buds become fully formed.

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.