4' x 3' Steel Raised Garden Bed with PVC Greenhouse Cover - ClearRaised garden beds are perfect to raise any type of plants as they allow better soil and moisture drainage and product a higher yield. Greenhouses or garden bed covers are perfect to protect your plants from freezing weather, frost, excessive heat, and too much moisture. This covered planter kit includes both a miniature greenhouse made with PVC panels and a steel tube frame and a galvanized steel planter box. The cover frame and panel materials make