PlantFun
Plant Needs
Sunlight
Requires full direct sunlight for 6–8 hours daily; tolerate partial shade but reduced flowering may occur
Watering
Allow soil to fully dry between waterings; avoid overwatering to prevent root rot, especially in cool months
Temperature
Thrives in warm, dry conditions; tolerate brief light frosts down to 5°C but protect from prolonged freezing temperatures
Characteristics
- Leaf: Modified into sharp, dense radial and central spines covering the globular green stem
- Flower: Funnel-shaped, pale yellow to pinkish-white, up to 5 cm in diameter
- Stem: Globular, fleshy green stem with prominent tubercles bearing spine clusters
Care Guide
Watering
Water thoroughly when soil is completely dry; reduce frequency during extreme heat to prevent sunscald
Fertilization
Diluted cactus fertilizer once monthly. Use a low-nitrogen, high-phosphorus fertilizer to support flowering
Eggshell powder topdressing：Crush dried, sterilized eggshells into fine powder; sprinkle lightly on the soil surface, avoiding direct contact with the stem to prevent moisture buildupPruning
- Remove dead, dried flower stalks to maintain a tidy appearance
- Gently separate offset pups from the main stem in spring for propagation
- Trim any damaged or discolored stem tissue with sterile tools to prevent infection
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic; minor skin irritation from spines may occur
Humans: No systemic toxicity; minor skin irritation possible from sharp spines
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for container cultivation, rock gardens, or xeriscape landscapes
