Grow tents help you grow warmer season crops in cool climates. Instead of investing in a greenhouse, consider buying a grow tent for your plants. The shapes and design of a grow tent can vary but it comprises a portable frame, which is covered in a plastic sheet. The plastic sheeting is made to capture and hold heat to promote plant development. Despite the grow season ending, grow tents allow your crops to ripen before the cold weather arrives. Your plants will live longer and you'll achieve increased harvest yields. Also, grow tents protect your plants from harmful pests or diseases.