Being a good time to start planning my garden, and flipping though various catalogs that have arrived, a friend asked my sources for medieval seeds, and this is what I wrote to him:
Most important and highest recommendations go Seed Savers Exchange in Decorah, IA www.seedsavers.org They have a catalog for the public, but members share seeds with each other, and that gives you access to over 13,000 varieties! Also, the work they do is essential to the future of our foodstuffs. I got my skirrets from a fellow member in colorado.
I am also partial to Bountiful Gardens, www.bountifulgardens.org who also do good work, and have many medieval plants (many that modern gardeners consider weeds)
For print catalogs, you can't beat Baker Creek www.rareseeds.com. Big, glossy, wonderful pictures. Jere Gettle has done a lot of work to save and propegate unusual varieties. He is in it for the money, but the man has to eat too.
Also there is Well-Sweep Herb Farm in Port Murray, NJ I know not their catalog or website as I just go there. Cyrus and his family do a great job, with a wide range of plants.
Please tell them I sent you.
As to those with little space or time, that is not a problem! It is best to start small,one potted plant is not too tiny! Gardening can take a great deal of time, money and energy, and the larger it is the more so. Start small so you may build upon your success.
You may also be interested in the medieval gardening yahoo group http://groups.yahoo.com/medievalgardening