Start seedlings or extend your growing season with the GrowIT Backyard Greenhouse with integrated shelving. This easy to assemble, compact greenhouse is constructed with high quality steel and features 4 ft shelving on both sides for built in staging of plants. Screen vents at both ends provide airflow and temperature control. The translucent fabric allows a significant amount of diffused light to reach the plants, while reducing the amount of harmful UV light. This means less damage to plants as well as reduced fungus and harmful insects.