

If you thought this was a tutorial for a regular greenhouse then think again!
Unlike a traditional glass greenhouse, that can be expensive to buy and difficult to construct, this effective alternative is underground! Even when the cold weather strikes, this clever underground pit will allow you to maintain a productive garden throughout the year!
To find out how to make your own, visit treehugger.com here…
Build A $300 Underground Greenhouse For Year-Round Gardening
