PlantFun
Plant Needs
Sunlight
Full sun to partial sun; tolerate bright indirect light for indoor cultivation; avoid prolonged shade
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot and fungal growth
Temperature
Thrives in 18–30°C; protect from frost below 5°C to prevent tissue damage
Characteristics
- Leaf: Modified into small, short spines arranged along prominent stem ribs
- Flower: Bright yellow, daisy-like blooms up to 5 cm wide, emerging from the cactus crown
- Stem: Globular with 30–40 distinct, rounded ribs, green to blue-green in color
Care Guide
Watering
Water thoroughly when soil is fully dry; reduce frequency during rainy periods
Fertilization
Diluted cactus fertilizer once monthly. Use low-nitrogen fertilizer to promote healthy rib development and flowering
Eggshell powder topdress：Crush dried eggshells to fine powder; sprinkle lightly on soil surface to boost calcium content without burning rootsPruning
- Remove dried flower remains and dead spines to maintain clean appearance
- Trim off small offset pups for propagation in spring
- Avoid cutting the main stem to prevent permanent damage to the cactus structure
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed non-toxic; no harmful effects for cats
Humans: Non-toxic to humans; no known adverse effects from ingestion or contact
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for rock gardens, container displays, and indoor succulent collections
