If you see this post from 2015 Oranges in Zone 5 you know what my inspiration is. @fruitnut has more experience than anyone on greenhouses The green is back in the greenhouse. Then you saw this thread Geothermal orange grove! Heavy yields! years ago which is sorta what Bernie is talking about now. Threads like this were great attempts Cattle Panel Hoophouse Greenhouse . We use simple tricks all the time Anyone avoiding the store by growing indoors, covered beds, or a greenhouse? . @fruitnut demonstrating some great greenhouse tricks Greenhouse inside a greenhouse and more A few greenhouse pictures and @Barkslip The Very Best Smaller Greenhouses Home Heater . We have done lots of zone stretching Cold hardy figs . The same ideas keep come up which is geothermal because it can buy you 20 to 30 degrees at least Pit greenhouse ideas . Imagine combining what we know with a few new tricks. What i like is as an example @Barkslip could still add geothermal to his current setup by adding some buried lines and bringing that air from the ground in Pear Dormancy in my Greenhouse: 14 cultivars 2 Rootstock . Remember below the frost line its not that cold and in the summer its not that hot. Plants wont cook or freeze if it’s done right. Here is another great greenhouse Building a Greenhouse and more discussion Greenhouse in Zone 7 and more ideas Is a small greenhouse worth the effort? . Here are more tips Greenhouse project planning . This is my all time favorite post by fruitnut Greenhouse fruit update . Temperatures are the enemy in the summer which makes simple geothermal appealing How to reduce greenhouse temperatures?
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