Indoor growing is a cultivation method mastered by city growers in countries where cannabis is still illegal. This system provides discretion, control, and stability—the perfect solution for geographical areas where seasons are well defined, where winters last longer, and where the plant has been banned. Growing in your closet is literally a form of resistance. Indoor growers resort to this practice everywhere, harvesting batch after batch. In order to build an indoor facility, you only need to know how the culture system works and stick by some rules. Remember that, if you wish to set up a perpetual harvest system, at least an extra room will be needed to accommodate plants in a different growing stage. An indoor system has the adequate level of light, air circulation, and temperature, allowing growers to cultivate cannabis in their living room, kitchen, or any other room.
DIY Indoor Grow Room
Any closet, fridge, ping-pong table, or even pipes used in building can be used to arrange an inexpensive indoor grow room. An indoor space of 60 cm high, and 48 cm wide and deep fits up to eight 1 L pots. You can also build it using three wood pallets forming a U against the wall so that the space is closed. The size of one of these pallets must be half the diameter of the others so as to use it as a door, which need not necessarily be covered. The ultimate goal is to build a structure that can be closed, maintaining indoor conditions. The facility can be covered using a white piece of cloth or—preferably—any refractory material such as aluminium foil, with the shiny side pointing inwards. Cardboard can be used as the roof of this structure, but one must note that lamps will always hang from the ceiling.
Indoor Growing at Home
Once the structure is ready, it’s time to move onto light and air, two key factors to keep the indoor microclimate balanced. Fluorescent tubes and low-energy bulbs are recommended to light up the room because they are both cheaper and more efficient. They do not produce heat and they shine with two wonderful kinds of light for plants to grow under: red and blue. Just one 65-watt and two 18-watt bulbs will suffice. A lamp holder and a timer to control the length of light and dark periods are two indoor essentials that can be easily found. Still, growers can opt to set an alarm that reminds them to turn lights on and off and do it themselves.
A homemade air filter can be made using a paper tube or a PVC pipe filled with charcoal and wrapped by a lycra stocking. Air circulation will play an important role to prevent hot air from damaging plants and to avoid moisture that allows fungi to reproduce. It is vital to develop both an air circulation and an exhaust system. Growers need not spend money on any sophisticated system: placing a fan at the corner of the room and a modest air extractor will be enough to create an effective ventilation system.
Indoor growing is designed to give cannabis the right amount of light in the winter, maintaining room temperature at an average of 25°C, and to keep pests and nosy people away from the plants.