Courtesy of James K., Virtually Green, San Francisco, CA In northern China, solar passive commercial greenhouses cover over 1.8 million acres. These greenhouses typically use no supplemental lighting, and little or no heating, to produce vegetables from Fall through Spring. It’s a highly evolved and very commercially successful design, and...
Courtesy of Scott W., Growing Gardeners Calgary Urban Farms , Calgary AB I am setting up a 50’x12′ hoop house this. I was going to order greenhouse poly from Johnny’s, but a few people have recommended using vapor barrier as it stands up to hail better, is cheaper, easier to...
Courtesy of Brenda S., Thompson Street Farm, Glastonbury CT *We built our 14 x 24 greenhouse last year and here are some books that helped us. Because of my  husband’s limited knowledge and experience in building structures, we needed a very simple design. I ended up buying the basic frame...
