The short growing season and high-altitude regions make Alberta gardeners prime candidates for greenhouse gardening. From Calgary to Bawlf, Cochrane to Vermilion, you can find countless Planta Greenhouse owners throughout the entire Alberta province. So learn all about life with a greenhouse in this climate by reading our reviews from passionate Alberta growers.
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.