Most plants will not flower and fruit at temperatures over 85 degrees
16mm triple-wall polycarbonate provide excellent insulation to extend your growing seasons
and suitable for long-term outdoor use
Six roof vents with heavy duty heat-operated automatic openers (no electricity required) and fly screens on the 25 ft model
Medium and Large: ~53 lbs
Janssens | Cathedral Victorian Glass Greenhouse Kit with 4mm Tempered Glass Glazing (Custom) garage storage Most plants will not flowerThe Janssens Cathedral Victorian Glass Greenhouse is a versatile, spacious, feature packed addition to any garden or backyard. The large floor size, tall sides, and extended roof cupola section allow space for all of your plant growing needs, or use it as a hot tub cover or outdoor sunroom. This model is a customized configuration for the Cathedral in Black, in two sizes: 15x25 ft, and 15x30 ft, both with 80 in. high side walls, and a 12 ft ridge