I have Ferocactus wislizenii and F. rectispina seeds and one or two others (unidentified barrel cacti). I am also able to obtain cuttings from several native varieties of Chihuahuan Desert (NM) prickly pear cacti (Opuntia spp.). These are hardy to Zone 7. Possibly some other wild collected desert plant seeds. Echinocereus triglochiadatus (Claret-Cup) cuttings that should be rooted by next spring (some of these appear to be the larger 'White Sands'strain). Maybe some other cacti cuttings or rooted cuttings. I am interested in trading for hardy cacti and xeriscape plants or seeds. What do you have to offer?

Looking for other California Native Plants (seeds/cuttings/plants)

"Thornless prickly pear" is not a specific species, but a general condition that applies to a few different species in the genus Opuntia. I assume that you're not looking for the Mexican Opuntia ficus-indica which is the one most commonly associated with being nearly thornless (but is too tender for your location). You probably want Opuntia ellisiana which is available in your area at Thyme After Thyme in Winterville. Luther Burbank did a great deal of experimenting with these thornless opuntia and probably produced the only hybrids that are genuinely thornless. I don't know if any of these are still around or not.

My O. guimillo died of cold and moisture. Many of the cold hardy cactus from Utah, Nevada and colorado did not do well. I once read that many of cold hardy cactus from those areas will only perform well in Z 7 and colder.I did not listen. I am in zone 8b and when I put these cactus in the ground here, they struggle. They seem to do well in pots but not in the ground. I think they need the cold hours that TexR has in Oklahoma to make them more dormant in winter. I have more success with cactus that originate from the Big Bend , Arizona, and southern New Mexico.Big bend is the best because they historically will get some rain events in winter (and summer). After 2 horrid years (for cactus), the more southern cactus (O. macrocentra, O. violacia) that also developed rot fell over and re rooted and is growing back, The northern ones just rotted completely. O. cacanpa is a texas variety and extremely moisture tolerant. O. leucotricha is a maybe for cold but good on moisture. O . robusta is hardy to about 17F and no moisture. ALL the robusta in my neighborhood died after a bad freeze a week after a good rain.If a big freeze is coming < I cut these back take in the pads and wrap the stump. Insurance. Ones in San Antonio have done fine. A couple of degrees warmer and a day less of cold than us. We get wild swings of temperatures in the winter here. The cold does not stay. O englemanni and O. lindheimeri (native to here) are good and the cow tongue englemani is great and will take cold and moisture in the ground but will ultimately be too large for a raised bed. They get huge when happy. They grow in unammended clay in Austin. Cylindropuntia imbricata texas form is very moisture tolerant where as the C. imbricata colorado form looks like hell now that I have it in the ground for three years. I have just torn it out. Cylindropuntia whipplei has not died and grows slow, but thick. It did not die with the huge floods that we have been getting but they look nothing like Tex's. Growing cactus and PPoutside is all about where you are, so look around at people in your area that have cactus gardens and find out what works in your zone and what is their sound prep. Get a hold of your C & S society. There is a good book , "Cacti and Succulents for Cold Climates" on cactus for cold hardy areas by Leo Chance Another , but harder to find is Growing Winter Hardy Cacti in cold?wet Conditions " by John Spain