Here is the long awaited follow up video of this great underground greenhouse walipini growing project.
Already this concept of growing undergound is starting to catch on and these guys are actually looking to build a business from it – Good luck with that guys.
Here are some of the questions already being asked:-
What about someplace that gets a LOT of snowfall? Plastic wouldn’t hold, would it?
The trick is to slope the roof more. Ours is only 20 deg. the plastic is very slick, so snow wouldn’t really collect on it if it was twice as steep.