Zenport Mini Greenhouse SH3240 Pop-Up Greenhouse Protects Shrubs, Small Trees, Bushes, Plants, Garden from Frost. This Pop-Up Greenhouse provides your outdoor plants, Fall, Winter and Early Spring protection from harsh weather conditions. The Jumbo Pop-Up Greenhouse offers protection from frost, snow, ice, and harsh winds. Sturdy construction, this Mini Greenhouse is built for year after year after year of use and re-use. Made from Heavy Duty Clear Polyethylene, and Spring Steel you will get many years of use from this unit. Measuring 21"x21"x26". This unit is 26" Tall, and 21" across the top in both directions. Some potential uses for this unit, but not limited to: Tomato Plants, with or without Tomato Cage Small Citrus trees Small Patio Trees (Palm, Ficus, etc) Any plant up to 26" Tall