Euphorbia horrida v. striata has clusters of variegated grey-green stems to 18″ tall and is hardy to 25F. That’s pretty good!
It’s from the Steytlerville District, which is in South Africa, and is a settlement in Cacadu District Municipality in the Eastern Cape province of South Africa, on the Groot River.
Not just Euphorbias, but Aloes abound in Steytlerville.
Apparently you are supposed to visit Oscar’s Bar – Karroo Theatrical Hotel when in Steytlerville. Good to know!