How to Water Scheer's hedgehog cactus?
Deep but infrequent watering, letting soil dry completely

Scheer's hedgehog cactus · Echinocereus scheeri
Grow in cactus compost in full light. From midspring to early autum water moderately and apply a half-strength balanced liquid fertiliser monthly; keep completely dry at other times. See houseplant cacti and succulent cultivation for further information
Deep but infrequent watering, letting soil dry completely