Short growing seasons, extreme weather, and extended winters are all challenges for gardeners within Ontario. So join hundreds of Planta Greenhouse owners from Toronto, Thunder Bay, Guelph, Westport, and every other corner across the Ontario province and transform the way you garden! Learn more by reading reviews from our countless customers across the region.
Sigma greenhouses have a traditional look, with a galvanized steel frame and twin-wall polycarbonate panels. Sigma Gen III is rated for 4.5 ft (55 psf) of snow and 65 mph wind, with a 10-year warranty.
