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 entire soil medium is completely dry; avoid standing water to prevent root rot
Temperature
Thrives in 18–30°C; tolerate brief light frost down to 5°C if kept completely dry
Characteristics
- Stem: Globular to short cylindrical, with 20–50 tightly packed, undulating ribs
- Spines: 10–15 short, white to tan radial spines per areole, plus 1–3 stiffer central spines
- Flower: Pale pink to white funnel-shaped blooms, up to 3 cm wide
Care Guide
Watering
Water thoroughly when soil is bone dry; allow excess water to drain fully
Fertilization
Diluted low-nitrogen cactus feed once monthly. Use diluted, phosphorus-rich feed to support spring flowering
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium levels and improve drainagePruning
- Remove dead or damaged spines and stem sections to maintain plant health
- Trim offset pups in spring for propagation; use clean, sharp tools to avoid infection
- Avoid cutting healthy ribs, as this can cause permanent scarring and stress the plant
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxic effects to humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for container displays, rock gardens, and desert-themed landscapes
