Milliard Portable Outdoor Greenhouse 5x5x6ft Always wanted a greenhouse in your backyard or living space? Now you can have one when you want it, and fold it up when you dont! This semi-permanent structure is easy to assemble, and gives fragile plants and flowers sanctuary in an unforgiving environment. Stakes and guy lines keep the greenhouse in place on windy days. The tear-resistant vinyl cover is reinforced for durability and helps retain humidity for plants to thrive. 8 rows of shelves for stacking potted plants, and plenty of floor space to let grounded plants grow inside. 8 total tiers, 4 tiers on each side. 16 total shelves.