How to Fertilize spiny-flowered echinopsis?
Very weak cactus fertilizer monthly during warm active growth

spiny-flowered echinopsis · Echinopsis spiniflora
Grow under glass in a loam-based potting compost with added grit. Water moderately when in growth, sparingly when dormant. Apply a balanced liquid fertiliser two or three times in the growing season
Very weak cactus fertilizer monthly during warm active growth