Bob

Thanks for bumping this up , I hadn't seen it. Pit greenhouses have been around a while and are cost effective alternatives to a "traditional" one. Seeing Mikevans though, my first thought after having dug graves in N.J. during the 80's through mid 90's is any time you hit sandy soil , that is when walls collapse and the potential for great danger is there. People have been killed. It might not be the same in sandstone , but if you are attempting such a project with out any excavating experience, consult someone who has dug a few holes before.
Story(sp?) publications has a great pit greenhouse primer in their country wisdom bulletins.
Every one should have a copy of Elliot Colemans four season harvest.It's written for organic vegetable production but the season extension and alternative greenhouse examples would benefit banana growers as well.
The idea of using stock panels is another good one that any one could adapt to their own use. For example , I recently was able to get free some field hockey goals being disposed of by a local school. Turned upside down they form a long "A " frame that I can attach 6 mil plastic with "garden clips" . These are a simple C shaped platic clip that will attach sheets of plastic to tubular material.I got mine from Charlies greenhouses. The same could be done with PVC pipe.
Last: No I don't have anything t do with any of these companies but have used them with good result.

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