How to Fertilize Peruvian old man cactus?
Balanced perennial feed every four weeks from spring through summer

Peruvian old man cactus · Espostoa lanata
Also known as: cotton ball
Grow in cactus compost in a sunny position. Water moderately during the growing season and keep almost dry in winter. See houseplant cacti and succulent cultivation for further information
Balanced perennial feed every four weeks from spring through summer