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Farming without sunlight

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Farming without sunlight is the practice of cultivating food with artificial light (instead of solar irradiation), or alternatively without any light at all.[1] It is done underground, or in a location above ground (for example in windowless rooms in buildings or using stealth grow boxes[2]. It is usually done using hydroponics, aeroponics or air-dynaponics systems or container gardens. The artificial light is generally provided by means of grow lamps[3] or daylighting systems (as light tubes).[4] Sometimes, special modifications are done to improve the system even more. These can include water-jacketed lighting system, a grow tent, NFT double pass growing system with moveable racks.[5]


Farming systems that do not use sunlight are still very uncommon. This is primarily due to the high cost involved. As such, they are currently only popularly used for the cultivation of cash crops such as Cannabis and for cultivating food in very harsh environments (on the poles, inside). Another popular use is for growing mushrooms, as underground cavities retain a lot of humidity (which mushrooms require) and as the mushrooms don't need any sunlight at all (they don't photosynthesize). However, they can also be of great value to people who wish to grow their own food, yet do not have aduquate space for this (for example, people living in appartments). As underground farming systems become more cost effective, it can thus be expected that more people will make use of them.

Present systems[edit]

See also[edit]