PlantFun
Plant Needs
Sunlight
Full direct sunlight; tolerates partial shade during extreme midday heat in arid regions
Watering
Allow soil to fully dry between waterings; avoid overwatering to prevent root rot
Temperature
Thrives in warm arid conditions; tolerates brief light frost down to 5°C but prefers 15–30°C
Characteristics
- Leaf: Modified into small, sharp spines clustered along ribbed stems
- Flower: Large, white, fragrant nocturnal blooms up to 15 cm wide
- Stem: Ribbed, spiral-twisted green column; covered in spiny areoles
Care Guide
Watering
Water deeply once soil is completely dry
Fertilization
Diluted cactus fertilizer once monthly. Discontinue fertilization during autumn and winter dormancy
Eggshell powder topdress：Grind dried eggshells into fine powder; sprinkle a thin layer on soil surface to add calcium without burning rootsPruning
- Remove dead or damaged stem segments to maintain plant health and shape
- Trim overgrown stems in early spring to control height and encourage compact growth
- Clear fallen spines and debris around the base to reduce pest harborage
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxic effects on humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental cactus for xeriscaping, container gardening, and indoor decor
