so im gonna scrape about 1/2-3/4 of an acre this spring to plant something for my bees. i want to have 5 hives by the end of the season and a couple nucs. when reading about this topic i heard a lot of people suggesting to plant yellow sweet clover. but when i looked into it i found that it is an obligate biennial and an invasive species, so as an ecologist i simply cannot plant that plus it would be 2015 before it flowered. so i went back to my original idea which was to plant canada goldenrod (Solidago canadensis) which is native in these parts, grows really well here too, and is the source for our largest annual honey flow as well. but seeds are about $200 per pound!!! that pound probably wont come close to planting the proposed plot.
does anyone know where i can find cheaper canada goldenrod? or know of another native plant that is easy to grow, cheap, and is a good source for honey production?