Vegetative plants appreciate healthy soil with nutrients. Feed them with a higher level of nitrogen at this stage.
As the sun reaches up high in the sky, your cannabis will want to as well. Make sure all of your plants are outside by the Summer Solstice.
Harvest happens sometime between September and November. This depends on your local climate, as well as the weather that particular year—one year it could be the end of September, the next, end of October, and growers in the Pacific Northwest will have to pull down their crops earlier than those in Northern California.
If you buy a clone from a grower or breeder it will be a seedling, so you can skip the seed germination phase.
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.
Marijuana light cycle: indoor—16 hours a day; outdoor—at least 6 hours of direct sunlight (“full sun”), plus several hours indirect sunlight
The growth stages of marijuana can be broken down into four primary stages from seed to harvest:
When should you grow marijuana?
There are a number of changes to consider once plants go from the vegetative stage to the flowering stage:
Marijuana light cycle: 12 hours a day
Because outdoor growers can’t control rain levels or morning dew, outdoor plants have the potential to be saturated on a daily or nightly basis. Outdoor grows, particularly in coastal regions, can be plagued by bud rot because controlling humidity levels is a major challenge.
“For outdoor growers, a leaf blower is a great tool to remove excess water from plants,” said Jared Dinsmore, a veteran cultivator. “Go out with a blower each morning or after a heavy rain and blow the dew off your plants. This is an effective way to dry them off so they don’t sit wet for extended periods of time.” It’s important to note that electric blowers are ideal because the fumes from gas blowers can be harmful to your garden.
After bud rot has set in, there’s not much you can do to reverse the spread of the fungus. If you notice a section of your garden has bud rot, there’s a strong possibility that the rest of your garden is infected too.
Causes of bud rot
Environmental control is the primary method used to avoid bud rot. Dinsmore and Watson recommend these four prevention steps:
“If you’re trying to save what you can, at the first sign of bud rot, remove infected buds carefully and don’t expose them to any other plants,” Watson said. “Wear gloves to remove and discard infected buds and place them in a sealed container so spores don’t spread throughout your grow room. Be sure to sanitize or toss any garden equipment used in the process, such as trimmers.”
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To prevent the fungus from spreading, remove all infected plants. This may help save some of the other plants. Although at this point, many gardeners will harvest immediately.
Bud rot, or botrytis, is a common fungus many cannabis growers face at some point, especially those who are unfamiliar with controlling humidity and air circulation.