Clemson Extension – Heirloom Vegetables University article about growing heirloom vegetables and how to save the seed for a future crop. Lists cultivars of many common garden vegetables.
http://hgic.clemson.edu/factsheets/HGIC1255.htm - More
Landis Valley Museum - Heirloom Seed Project Project focuses on seed preservation and maintaining seed from heirloom varieties of vegetables, herbs and ornamentals with historical significance to the Pennsylvania German settlers.
http://www.landisvalleymuseum.org/seeds.htm - More
Southern Exposure Seed Exchange Promotes availability of regionally-produced organic seed for vegetables and flowers. Actively works to keep the world’s seed supply free from GMO (Genetically Modified Organisms.” All seed and bulb production is based on organic and sustainable methods.
http://www.southernexposure.com/ - More
Southern Heirloom Seeds and Memories Describes projects to conserve the biodiversity of the southern United States. Offers newsletters, project descriptions and sustainable living information.
http://www.uga.edu/~ebl/southernheirloom/ - More
The Heirloom Garden Article about the benefit and value of growing vegetables, herbs and ornamentals from non-hybridized seeds that are historically significant. Has a long list of heirloom seed websites.
http://www.vegparadise.com/heirloom.html - More