This portable, pop up greenhouse is perfect for extending your growing season and protecting your plants. The Unique Flowerhouse Pop Up design make Greenhouse set up the easiest it has ever been. Screened vent openings allow for optimum air circulation very important for the health of your plants. Closing the vents will promote and maintain high humidity levels desirable for a superior growing environment. The PVC material is UV resistant for longer life .Solar heat from the sun heats your greenhouse during the day while an electric heater is recommended at night and in cloudy or snowy conditions. Folds up easily into a compact storage carry bag for transport, setup and takedown have never been easier! Includes shade cover, stakes, high wind tie downs and free storage bag with shoulder strap.