I’m attempting to grow marijuana in a space that’s 4’ x 4’ and 5 feet tall, and I’m looking for some tips. What kind of lights should I use in that space? What amount of marijuana plants can I grow? How high of a yield should I anticipate?
Your marijuana grow area is 16 square feet total. Cannabis thrives on a diet of high intensity light. If you have an electrical input of 50 to 70 watts per square foot (psf) of high pressure sodium (HPS) light, it will produce the intense light rays required for increased growth rates and flowering. A 1,000-watt lamp placed over a 16 square foot area as an input of 62.5 watts psf, which is the perfect size lamp for your marijuana grow space. Put the light on a 2- or 3- foot track light mover. Make use of an air-cooled light system so the marijuana plants can grow closer to the light without burning. For a planting medium, use a shallow container like rock-wool slab in a tray or a tray of horticultural clay pebbles. The marijuana plants should be low growing indica varieties that branch out adequately, but stay below 3 feet in height. Once the plants have reached a height of 12 to 20 inches, place them in flowering.