With modern techniques, growing cannabis has become easier and they provide seemingly infinite varieties of hybrid strains. While most growers are satisfied with a yield of two ounces per plant, they don’t know that it is possible to consistently yield over a pound, and in some cases over two pounds, all while remaining within the restrictions of their medical marijuana programs. You can grow them outdoors as well as indoors. Marijuana, if grown outdoors, is always under the constant threat of fluctuating weather, diseases, and thieves, so growing them using indoor hydroponics is a better option.
To start, try to get some good clones from reliable person else opt for seed germination. Feminized seeds are best for this purpose under artificial lighting, outdoors or in the greenhouse. These seeds produce marijuana of high quality, flavor, and potency (THC/CBD) than those produced by non-feminized seeds. Germinate marijuana seeds in rockwool cubes and maintain the temperature between 75° and 85° Fahrenheit. If you want to get potent buds, remove the male plants before flowering takes place. This will let the female plants to utilize all her energy in producing sticky, THC-laden flowers rather than the seeds. With this, you will get a virgin plant. Though you can use nutrient film technique for growing marijuana, but the most popular choice of growers for this is ebb and flow system. Cannabis likes lower temperatures and cool blue light, so Metal Halide (MH) and High Pressure Sodium (HPS) are the best lights for growing hydroponic marijuana. Blue light of MH is good for vegetative phase while red spectrum of HPS is optimum for flowering growth. Keep the lights on for 16 to 24 hours a day during vegetative phase. To initiate flowering, when the plants are at least 6 inches tall and have at least four sets of leaves, 12-13 hours of light is sufficient. Make sure dark period is very dark else, it will stay in vegetative phase only. Give your plants N-rich diet during vegetative and P-rich diet during flowering phase. Flush the plants with clean, nutrient-free water once during the flowering phase, again after 6 weeks, and then just before harvesting.