How to Propagate Cereus validus?
Propagate by seed in early spring or root cuttings of young branches in late spring or early summer

Cereus validus · Cereus validus
Grow under glass in a standard cactus compost, in full light. Water freely when in growth and keep almost dry at other times. See houseplant cacti and succulent cultivation
Propagate by seed in early spring or root cuttings of young branches in late spring or early summer