PlantFun
Plant Needs
Sunlight
Full direct sunlight for 6–8 hours daily; tolerate partial shade during extreme midday summer heat
Watering
Water deeply once weekly in growing season; allow soil to fully dry between waterings to prevent root rot
Temperature
Thrives in 15–30°C; tolerate brief dips to 5°C during winter dormancy
Characteristics
- Leaf: Modified into sharp, short spines arranged in 5 distinct ribs per cylindrical stem
- Flower: Bright pink to magenta, star-shaped, 5–7 cm in diameter with pale yellow stamens
- Stem: Green, segmented clumps forming dense, low-growing mats
Care Guide
Watering
Water deeply when top 5 cm of soil is completely dry; avoid splashing water on stems
Fertilization
Diluted cactus fertilizer once monthly. Use low-nitrogen, phosphorus-rich diluted feed to support bloom production
Eggshell powder topdressing：Crush fully dried eggshells into fine powder; sprinkle lightly on soil surface; avoid direct contact with stem bases to prevent pest attractionPruning
- Remove dead, discolored, or damaged stems at the base to maintain clump health
- Thin overcrowded clumps in early spring to improve airflow and light penetration
- Snip spent flower heads after blooming to redirect energy to new stem growth
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed non-toxic to cats
Humans: Non-toxic to humans; no known irritants from spines beyond physical puncture
Garden Uses & Culture
Culture: N/A
Usage: Ornamental cactus for rock gardens, container displays, and xeriscaping
