Hi, Ryan and welcome! I am interested in the answer to your question also...I use buckwheat as a summer cover crop, for bees and as a chop and drop mulch but don't know any different varieties.
"We're all just walking each other home." -Ram Dass
"Be a lamp, or a lifeboat, or a ladder."-Rumi
“When it is understood that one loses joy and happiness in the attempt to possess them, the essence of natural farming will be realized. The ultimate goal of farming is not the growing of crops, but the cultivation and perfection of human beings.”
― Masanobu Fukuoka, The One-Straw Revolution
Get me the mayor's office! I need to tell him about this tiny ad: