Copiapoa cinerea subs. columna-alba f. albispina

Endemic to a zone where measurable rainfall is virtually non-existent, this plant survives entirely on the cool, moisture-laden camanchaca fogs rolling off the Pacific Ocean, which are captured by its woolly apex and channeled down its heavily waxed ribs. In cultivation, it demands an uncompromisingly lean, 95% to 100% mineral substrate (such as premium volcanic pumice, coarse sand, and granite grit) in a deep pot to support its massive taproot. It must be watered with extreme discipline only during warm, breezy weather, paired with a strict, completely dry rest throughout the winter to prevent fatal rot.