NS/S provides only open-pollinated (OP) seed varieties. OP varieties will breed true from seeds, meaning that if grown with care to avoid cross pollination, seed saved from the parent plant will grow with the same characteristics. Seeds from the NS/S Seed Bank are landrace or heirloom varieties with a long historical connection to the Greater Southwest.

In addition to seeds offered from the NS/S Seed Bank, we include OP species and varieties from outside our collection to broaden our offerings. These heirloom varieties can perform well in the Greater Southwest even though they do not have a deep historical connection to the region. The distribution of these varieties directly contributes to the conservation of seeds represented in the NS/S Seed Bank collection.

Click here to learn about our position on organic practices, seed patenting, and genetically modified seeds.