Overview

Greenhouses are a great, inexpensive way to cultivate cannabis. They harness the power of the sun, provide a warm climate, and protect gardens from harsh environmental conditions.They also allow for year-round cultivation, climate control, and a controlled exposure to sunlight. What's more, they're cheaper than growing indoors and produce a more consistent product than fully outdoor grows.Solar radiation (energy from the sun) passes through the transparent walls of a greenhouse and heats up soil and plants, keeping a greenhouse warm even when the outside air temperature is cold.In turn, soil and plants release energy as infrared radiation, which can't escape the greenhouse, so the trapped heat warms the air.On a hot day, you experience the science behind a greenhouse when getting into a parked car that has been left in the sun.This greenhouse effect opens up the door to year-round cultivation, but cannabis still needs light from the sun in addition to the warmth that a greenhouse provides.Cannabis generally goes in the ground outside between April and July, when the sun is out for most of the day. This keeps plants in the vegetative stage.Once cannabis starts getting 12 hours of light or less, it'll start flowering and producing buds. This happens outdoors at the end of summer, when days start to get shorter.Advanced greenhouses can allow you to grow year-round by controlling light. They can provide supplemental lighting when it's too dark outside and they can block out all incoming light if it's too light outside.

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9781091481732

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