Buckwheat is one of my favorites and I buy a 50 # bag every few years to sow everywhere. It is $1.00 a pound at our
local feed store. Other cover crops like mustards, turnips, clovers, vetch and rye grass I buy there also but only a pound or so at a time. This seed is untreated but not organic. Some like fava, soybean, wheat, and others we order in 5 to 25# bags through our local organic food buying cooperative.
"We're all just walking each other home." -Ram Dass
"Be a lamp, or a lifeboat, or a ladder."-Rumi
"It's all one song!" -Neil Young