Echinocereus fendleri var. rectispinus - Hidalgo co., NM

Echinocereus fendleri var. rectispinus is a unique long spined form of Echinocereus fendleri and almost intermediate between E. fendleri and E. fasciculatus. Plants have taken -17F and have been hardy. These plants should be more hardy than any other offerings of this sub-species. Definately worth checking out.
 
I do not guarantee these in a zone 4/5/6/7 because everyones growing conditions are different but this would be a good trial plant to grow in your cold outdoor garden. Try to plant outdoor 90 days before 1st hard freeze.