Re: Bananas in a Greenhouse in SE Michigan
If you want to plant directly in the ground, i'd recommend digging down 2' and creating a 2' wood/brick foundation. I used 8"x8" wood. It's extra work, but will allow you to plant in the ground. Otherwise the ground becomes too cold and the bananas don't do well. My grandpa had a greenhouse that was ground level and he had issues with soil temperature. He eventually ran hot-water lines under the soil. PLUS! It gives you that much more head room. If you look at my avatar picture, you can see how short my greenhouse was. It was 7' at the peak, but It was actually 9' since I dug down. The extra 2' was VERY nice!
My next greenhouse, I will hire someone to dig down 3-4' with a backhoe. Add a foundation and 2' of topsoil. That's if it's in a cold climate..
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Adam
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