What Is Greenhouse Gardening?
Greenhouse gardening is literally gardening that takes place within a greenhouse. A greenhouse is a structure that is mostly made of glass in order to allow the maximum amount of sunlight to enter the space, warm the air, and help to grow the plants. As such, greenhouses are usually rather warm, even in winter months. The interior temperature and humidity of a greenhouse can be regulated with heating units as well as humidifiers. Large and elaborate greenhouses often have multiple rooms set to varying temperatures and humidity levels in order to provide the right conditions for different plant groups.