Thelocactus setispinus SB1811
Thelocactus setispinus formerly Hamatocactus setispinus is really a thelocactus. These small little barrel cactus get large yellow flowers during the monsoon summer months and then is followed by little red fruit. These plants have taken -17F in our garden and like being on the dry side in winter. We are growing the most cold hardy clone we could find from Kimble county, TX (SB1811).
We share our experiences to help with your own trials of cold hardiness. We do not guarantee these plants in any garden or zone. Every garden is different and everyones growing conditions are different. Please try plants at your own risk, I do not want to be misleading to anyone.
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