I can’t stress enough that the time frames on this 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.
Pruning and cleaning up plants is done as-needed. You want to get rid of dead leaves and lower branches that won’t get light so the plant can use that energy for producing buds in healthier branches.
It takes about 3-7 days to germinate a seed. A lot of growers will do this indoors because seeds are delicate and it’s easier to control the temperature and climate inside. But if you live in a warmer climate, by all means, start growing them from seed outside. You can also use a small greenhouse outside to keep them warm.
Everything should be cleaned up, dried, and curing well before the Winter Solstice. Now’s a good time to make your own cannabutter, topicals, or tinctures with all that trim from the harvest. Kick your feet up, relax, and hunker down for the cold, it’s been a long growing season!
On the West Coast of North America, cannabis farmers in Northern California have a long season: They can put plants outside early and harvest later into the season because of the region’s relatively warm weather.
Cannabis plants are considered seedlings until they begin to develop leaves with the full number of blades on new fan leaves. A healthy seedling should be a vibrant green color.
Within the flowering stage, there are three subphases:
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.
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.
The Spring Equinox is a good reminder that it’s time to kick off the outdoor growing process and start germinating your seeds.
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.
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.
You may need to start watering your plants more often due to their fast growth. Make sure to prune off any leaves and small branches on the bottom third of the plant to improve air circulation and focus the growth on the top buds that get the most light.
At this stage, you will be flushing the rest of the nutrients from your crop and preparing for the next crop. Generally, you will have about 1 to 2 weeks where you can choose to harvest your plants, depending on your preference. Check out our guide on the right time to harvest.
When watering, allow the water to flow from the bottom, a tray can be used. Only water them when the water is completely gone. If necessary, you may spray your plants with water to keep the humidity up. Ideally, you will have started with pre-fertilized soil, so no additional fertilizer is necessary.
Our indoor grow calendar serves as an excellent foundation for beginners to establish a routine with their cannabis plants. Adapt the calendar to meet your exact specifications as you develop your growing techniques. If you follow our weekly schedule, you should have a successful harvest!
During the second week of the vegetative stage, you can begin to turn on all of the lights you will be using. You can also bring the lights closer to the canopy (about 20 inches above the plants). Just make sure your plants will not get burned.
During the last week of the flowering stage, you will be preparing for harvest. However, strain growth varies by genetics. Some strains may need longer to flower than others. Flowering can go up to 12 weeks or more, depending on genetics.
You will really see your flowers grow and the aroma develop. You can start thinking about flushing your plants to remove the excess nutrients and salts. You can do a 24-hour flushing process without nutrients. After 24 hours, you can continue the normal feeding schedule.