Put your green thumb to work year-round with the Outdoor Winter Greenhouse for Plants by Home-Complete. This pop up greenhouse features durable materials and a plant-friendly design, with 6 vented windows and a roll-up zippered doorway so you can access the plants inside. Assembling this backyard greenhouse is simple, and the extra-long ground flaps are easy to secure by weighing them down with cinder blocks, bricks, or stones (not included).