After extensive research, during the planning stage of our permaculture yard, I came up with the following list that can work well in my Zone 5b, semi-arid, Colorado climate. Please note that this list hasn’t been tested yet. I will update as I test species in my yard. It is purely based on research.
|Rhizosphere Layer Plants|
|Yacon||Potato type plant||http://www.raintreenursery.com/Yacon.html|