Mini Pop-Up Greenhouse Mini Greenhouse Value Set -- Pack of 3 Small Pop-Up Greenhouses (Indoor, Outdoor). Each mini greenhouse measures 15"H x 15"W x 15"L -- ideal for both indoor and outdoor locations. No assembly required -- one-step pop-up design. These small greenhouses protect plants against the elements and promote healthy plant development. Small size makes them the perfect greenhouse for kids. Also great deck and patio plants. Each mini greenhouse plant protector features clear plastic with a dark green trim.