Our Early Star 4-Shelf Greenhouse is ideal for the urban gardener, beginner or hobbyist. Once your plants have sprouted, you can transfer them to your larger greenhouse. The thermal cover creates the optimal growing conditions for plants. Great year-round protection for annuals, perennials, vegetables, herbs and delicate plants. Includes a removable, clear, waterproof, UV protected PVC thermal cover. Constructed with interlocking all steel frame for strength. Comes in Hunter Green, powder-coated frame for rust protection, and all steel mesh shelves provide the ideal drainage and circulation. Dual zippers provide easy access, ventilation and moisture control. Convenient size for the deck and patio and can also be used as an attractive year-round plant shelf for by simply removing the cover.