Echinocereus rhyolithensis

Echinocereus viridiflorus rhyolithensis comes from southern New Mexico (Red Rocks, NM). This plant looks like the northern version of Echinocereus russanthus but is more cold hardy. Plants were grown from mostly yellow/red spined plants. Plants have taken -22F for us with no problems in colorado. We are growing it in a well drained rock garden. 
 
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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