This backyard greenhouse is an ideal way to extend your growing season while easily managing your plants and protecting them from extreme temperatures. It has a two-layer 140 GSM PE cover with a reinforcement grid through the middle to prevent tearing, which protects plants from UV scorching while allowing 85% of nourishing sunlight to pass through uninterrupted; the 5.9 in extended edges should be deeply buried in the soil to tighten the greenhouse cover for more stability and to prevent rainwater accumulation. The galvanized steel frame of this outdoor walk-in greenhouse resists corrosion, chipping, and peeling, and the outdoor greenhouse is equipped with four slant supporting rods, four guy ropes, and four ground stakes for enhanced stability. The greenhouse has a zippered roll-up door that can be fully opened for easy access to this hoop house, and its 6 mesh windows provide better air circulation for plants while also serving as observation windows to check on the growth of plants; assembly is required. Note: Please put away the cover in case of heavy snow, strong wind, and heavy rain.