Seed germination length: 3-10 days
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.
Notes on marijuana growth phases
If you buy a clone from a grower or breeder it will be a seedling, so you can skip the seed germination phase.
We can’t stress enough that the timeframes in the above graphic are ranges of time for the Northern Hemisphere. You’ll need to adjust them based on your specific region and local weather and climate.
Within the flowering stage, there are three subphases:
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You could also give your plants a full twenty-four hours of daylight during the vegetative phase to encourage leaf and stem growth. This will enable you to reach the flowering stage a little sooner without compromising so much on the eventual yield.
When growing cannabis indoors from ordinary seeds, the grower has to decide when to switch the plants from the vegetative phase to flowering. This is usually done by altering the lighting schedule. Reducing the total hours of daylight stimulates the plants to produce buds and will start the flower stage. This is usually about two to three months after sowing, depending on the variety.
2. Speeding up the flowering phase
It may sound obvious, but one of the easiest ways to reach harvest quickly is to choose seeds with short flowering times. Always buy seeds from reputable and established sellers who will display growing and flowering times on their websites. The aforementioned Northern Lights feature a two-month flowering phase, while others, such as Sour Diesel need to flower for more than 2,5 months. Strains with longer flowering times generally tend to perform better outdoors because they receive more sunshine. However, varieties with short flowering phases often produce cannabis of equally good quality.
A practical solution, if you are really impatient, is to cut short the vegetative phase. The yield will be less but much more than by entirely skipping the vegetative stage. Let your plants vegetate for a shorter period than that accepted in order to switch to flowering more quickly. The yield will certainly not be extraordinary, but always more than by making the plant flower from the sowing stage. It could take three more weeks, for example, in which case you will be able to harvest after about 14-15 weeks.
All plants, including cannabis, need sunlight, water and nutrients to survive. To ensure your plants grow as quickly and healthily as possible, you need to ensure they have all three in the correct quantities. You can add nutrients to the soil with fertilizer or directly into the water if you are using a hydroponics system. Read our blogs for more information about how much water and light your plants need at each stage of the growing process.