Grow Wild: Flowers to the People website
An index to 35 seed suppliers in the UK, cross-referenced for everything from Adzuki beans to Yard long beans.
Oriental vegetable seed specialists
Garden Organic’s (formerly Henry Doubleday Research Association) Heritage Seed Library has over 800 varieties of vegetable, of which 200 or so are offered free to members each year
The Irish Seed Savers Association is a voluntary organisation dedicated to the location and preservation of traditional varieties of fruit and vegetables, based in Scarrif, County Clare. It maintains a seed bank which distributes seeds of non-commercially available vegetables, including heritage potatoes. They have a collection of more than 120 old Irish apple varieties.
A booklet from the International Seed Saving Institute, gives vital details of the feasibility, and how to save seed from different vegetables