PlantFun
Plant Needs
Sunlight
Full direct sunlight for 6–8 hours daily; tolerate partial shade during extreme midday summer heat
Watering
Water deeply only when the soil is completely dry; avoid overwatering to prevent root rot
Temperature
Thrives in 15–30°C; tolerate brief light frosts down to 5°C if soil is dry
Characteristics
- Leaf: Modified into short, silver radial spines and longer central spines covering the globular green stem
- Flower: Bright yellow, funnel-shaped blooms emerging from the crown of the cactus
- Stem: Globular, green, covered in white woolly areoles that produce spines
Care Guide
Watering
Water thoroughly when soil is fully dry (every 1–2 weeks)
Fertilization
Diluted cactus fertilizer once monthly. Suspend fertilization entirely in autumn and winter during dormancy
Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle a thin layer on soil surface to add calcium without burning delicate rootsPruning
- Remove any dead, shriveled spines or damaged stem tissue as needed
- Trim offset pups at the base in spring for propagation
- Avoid overhandling to prevent damage to the delicate silver spines
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxicity to humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for rock gardens, windowsill collections, and small container displays
