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Hi fellow Rocky Mountain gardeners. This summer's garden is history, even with the somewhat mild days ending this October. The veggie garden did pretty well this year thanks to more rain that the last two years, even with some garden negligence because of building projects on the homestead. The point of this post is my next building project which is slated for next spring. It's the greenhouse. I'm from the gulf coast (New Orleans) originally, and want to extend the growing season, plus include perennial plants I miss from the south. I'm torn between a few greenhouse ideas. I like the low cost of the asymmetrical gable style structures, but want something wider than 12-14 feet by whatever length. I have 20 feet of recycled double insulated glass casement windows (five- four feet wide by five feet high) that might work for that type of structure, plus some clear twin wall rigid poly (saved from the dumpster) for more solar gain surface. That sounds great, but I'm also interested in the "grow domes" that are made over in Pagosa Springs. I stumbled across one in Jaroso, CO last week, and met the owner out in front of his house who invited me (and my wife) to take a look. It was great! The one they have is a 26 foot dome, and they get veggies and fruit all year using minimal supplemental heat. They shared sweet strawberries, tomatoes, and have squash, peppers, chard, herbs, and even figs and lemons growing in there. I guess because my garden finished in September, and my longing for a 'Celeste' fig and citrus (and bananas!), I wanted to place an order for a dome that evening. But I waited, since I've been playing around with other designs. I've been designing a greenhouse with elements of the domes, but with my personal preferences included. I was thinking about a hex or octagonal design to get more sun throughout winter days, but include the water tank (heat sink), and more insulation on the north side than a dome provides. I can still use the insulated glass windows I already have, along with the poly. The point of my post is to ask any of you what greenhouse design you use up here where winter lows get below negative 20 or 30, and to ask what success you have with it. Thanks in advance, Steve
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