I’ve tried to grow every type of grain and oilseed I can find, and save enough seeds to expand production if time gets worse.
Where I get seeds, a couple of larger quantity ones first:
Organic Growers Supply (Fedco seeds): http://www.fedcoseeds.com/ogs/search.php - they have spring and winter wheat in addition to other grains and oilseeds. I bought some Montana Hard Winter wheat from them last year, which they don’t sell now, they’ve switched to Warthog.
Shumway: http://www.rhshumway.com/dc.asp?c1=Farm+Seeds&c=233 - no wheat but sorghum, field corn, and minor grains
Johnnys: http://www.johnnyseeds.com/c-4-cover-cropsfarm-seeds.aspx - I plant their Glenn Spring Wheat and Hulless Oats.
Peaceful Valley: http://www.groworganic.com - they sell their grains as cover crops but I use some of them as grain crops now.
As greeneyes said, Bountiful Gardens sells small quantities, I grow their kamut, hulless barley, quinoa, oilseed radish, proso millet
Baker Creek: http://www.rareseeds.com - has small packets of various grains
Southern Exposure: http://www.southernexposure.com has grains including upland rice.
Fedco Seed: http://www.fedcoseeds.com - has wheat and other grains and upland rice.
Hope that helps.
Thanks for the list and links! Here are a few more for older grain varieties:
http://ancientcerealgrains.org/index.html
A site devoted to cereal grain preservation and dissemination. Concentration is mainly old varieties no longer commercially viable. Pre-Green Revolution grain and flavor. Possibly of use to those looking for solutions to gluten intolerance.
http://www.prseeds.ca/catalogue/grain.php?C=Grain
This site is the product of what looks to be a guy with a vision. He offers a great deal of older grain crop seed but a lot of other stuff, too. Youll have to download his order form and send a check by snail mail. Old fashioned; I like that.
http://www.growseed.org/einkorn.html
Einkorn seed and seed preparations. Apparently, this guy grows out this strain and because of its origin and/or properties, hes making flour, pasta, malted grain and everything else at about $35/lb. His seed is also for sale at the same price. If you want Einkorn, this is probably the place.