A favorite Greenhouse Kit – sized to fit any backyard. The Sunshine Greenhouse Kit will be beautiful and stylish in your backyard The Sunshine Greenhouse is charming, easy to build and affordable. The Sunshine Greenhouse Kits are built strong, made with natural redwood frames and virtually unbreakable double-wall polycarbonate. Whether it be for ornamental flowers or getting an early start with tender plants started from seed. A good greenhouse can help you garden more effectively and share veggies and flowers from your own greenhouse anytime of the year.