One concern when growing Green Crack x Super Silver Haze Fem indoors is the space that it needs. Staying true to its Sativa genes, the plant can extend up to 120 cm (4 feet) or more. With growing cabinets out of the question, there are still some ways to control this height.
Early topping in the vegetative stage encourages the plant to grow laterally. By cutting the top growth, the height can be restricted to about 60 cm (24 inches), as well as helping to maximize the efficiency of the grow lights. Pair this technique with pruning in the first few weeks of flowering. By removing excess foliage, the plant can direct its energy to more bud production. Finally, implement the Sea of Green (SOG) method to force it into flowering earlier.
For optimum growth, maintain the proper temperature. Keep it between 22 and 25 degrees Celsius (72 to 77 degrees Fahrenheit) during the day and drop it by no more than 10 degrees at night. As for the lights, 600-watt HPS or LED lamps about 45 cm (18 inches) above the canopy are ideal.
As proof that all the trouble is worth it, this strain will reward you with 350 to 500 grams (12 to 18 ounces) of gigantic, fluffy buds per square meter.