Plants of the Southwest. Santa Fe; (800) 788-7333 or www.plantsofthesouthwest.com. Several Southwest mixes, plus single species.
Wildlands Restoration. Tucson; (520) 882-0969. Specialized mixes, such as Old Town Tucson, Old Town Vegas, Red Rock Country, Santa Cruz Foothills, plus many single species.
Wild Seed. Tempe, AZ; (602) 276-3536. Many specialized mixes ― Catalina Foothills, Great Basin, Mojave, Sonoran ― plus lots of single species.
Wildseed Farms. Fredericksburg, TX; (800) 848-0078 or www.wildseedfarms.com. Only one mix for the Southwest, but lots of single species. Color catalog.