This grower is sure of this plant identification.
This Cleistocactus needs a full depth pot (rather than the half pot used for most cacti) and re-potting in the Spring, to reach its full height- 6 feet (2m). Keep dry in the Winter, and water/feed in the Summer, allow to dry between watering.
Cleistocactus strausii (Silver torch). This is a cactus-like branching succulent to 2.5m in height. It will bear grey green stems that have yellow spines covered in white bristle. From the stems of older plants appear cup-shaped, dark red-cylindrical flowers in late summer.
It will need staking
Italics = data drawn from parent genus or speciesView Full Plant Finder Record