Avoid clay pots as they can be costly, heavy, and retain heat that could dry out the plant’s soil and roots. Fabric pots are the least expensive and most effective solution, as they allow for ample drainage and plenty of oxygen to get to the roots. Plastic containers are also light and inexpensive but tend to retain more heat than fabric pots. Flowering plants need a container that is at least 5 gallons (18.9 liters) to prevent them from outgrowing their containers and becoming rootbound.
In the Northern Hemisphere, cannabis can be planted in early to mid-spring and harvested in mid-fall, depending on the cultivar. In the Southern Hemisphere, the growing season will be reversed with planting in early to mid-fall and harvesting in the middle of spring.
Most cultivars will begin to flower once they receive fewer than 15 hours of sunlight per day. The latitude of your garden has a direct impact on how many hours a day your plants receive light.
Avoid spraying synthetic insecticides on your cannabis plants as further research is needed to determine the health effects of smoking plants treated with synthetic chemicals. Organic pesticide and insecticide solutions can be effective if used properly. If you can avoid it, it is always best to not spray anything on your plants while they are flowering.
Beneficial insects, fungi, and bacteria can also be used to protect your plants from their parasitic or predatory counterparts. Jumping spiders, ladybugs, and other native, beneficial predatory insects can clear your crop of insects such as aphids and whiteflies. When sourcing beneficial insects, fungi, or bacteria, it’s important to research those which are native to your region.
Container gardens can be convenient as they can be moved around the garden to maximize sunlight or protect them from harsh conditions Photo by: Gina Coleman/Weedmaps
If you decide to use seeds, make sure you start them about a month before you would typically start clones to give them time to germinate and adequately develop their taproot.
You must be careful not to wait too long to harvest because marijuana plants suffer a decline in health once they have completed the flowering phase.
Obviously, your plants need water, and the benefit of growing outdoors is that your marijuana should be exposed to rainwater. However, in places like California, the hot summer months mean minimal rainfall, so you have to water your plants manually. The main danger is overwatering your cannabis. A good rule of thumb is that a large plant needs 10 gallons of water a day during hot weather.
Threats like moles, who push up from the soil beneath your plants, require extra planning. An excellent way to prevent them from causing damage is by building a fence around 2-3 feet beneath the soil. You can also use deterrents such as urine from predators like coyotes, to ward off rabbits, gophers, and raccoons. Household items such as garlic and castor oil are pretty effective deterrents, too.
Just to be clear, growing cannabis is a time-consuming process. However, it is also an extremely rewarding one. This is a guide for a first-time grower who wants to grow quality cannabis without breaking the bank. If this is your first outdoor grow, and you miss a single step, then you may end up with a disappointing yield.
Step #10: Grow, Enjoy, Repeat!
The chief downside to growing from seed is that the outcome is less predictable than it is with clones. If you don’t choose an inbred seed line, you could end up with a different plant to the one you expected. Also, cannabis seeds produce males and females. This means you have to sex your plants when they achieve sexual maturity. This process involves culling the male plants. You can avoid this issue by purchasing feminized seeds.
However, once the temperature goes below 42 degrees Fahrenheit, most varieties of cannabis will be damaged quickly. If excessively cold temperatures are a problem, use protection such as cold frames, hot caps, or cloches.
Some places to consider for an outdoor grow include:
Step #4: Add Some Fertilizer to the Plants
It is a fact that some store-bought soils are too acidic at the beginning. This means you have to use organic fertilizers after a couple of weeks because the plants are lacking crucial nutrients.
If your crop is in a windy spot, create a windbreak such as a wall. Alternatively, tying perforated plastic sheeting to garden stakes is also effective.