Greenhouse, also known as greenhouse. Facilities that can transmit light, keep warm (or heat) and be used for cultivating plants. It can provide greenhouse growth period in the season unsuitable for plant growth, increase yield, and is mostly used for cultivation or seedling raising of plants such as warm-loving vegetables, flowers and trees in the low temperature season. There are many types of greenhouses, which can be divided into many types according to the different roof truss materials, lighting materials, shapes and heating conditions. The advantage is that you can grow vegetables out of season.