Greenhouse plans

Been looking at ways to extend our growing season. Found some interesting plans for a straw bale passive greenhouse. Basically, 3 sides are a straw bale construction with a stucco coating, with the south side and partial roof glazing. The article that I found most interesting was by someone from the mountains of New Mexico. The author claims that they were able to grow 9-10 months out of the year. It had a heat sink along the inside of the north wall to store up some of the solar energy for nighttime release.

We decided to try to build something along this line and have saved up some money to get started. It will be an interesting experience working with straw bales. If this works out like it is supposed to, we may try this technique on a new outbuildings at a later date.