Sunnydaze Steel Raised Garden Bed and Mini Greenhouse Kit - GreenGrow beautiful plants, flowers and more with this raised garden bed with cover. This greenhouse kit includes a durable garden bed and a convenient mini greenhouse cover to protect your plants from frost, excessive heat, and too much moisture. The garden bed is made from galvanized steel while the greenhouse is constructed with an iron tube frame and a PE cover. It's perfect for use on your front porch, patio or in the yard.