PlantFun
Plant Needs
Sunlight
Full sun to partial sun; tolerate bright indirect light for indoor cultivation; avoid prolonged harsh midday sun
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot
Temperature
Thrives at 18–30°C; protect from frost below 10°C to prevent stem damage
Characteristics
- Leaf: Reduced to small, sharp paired spines along stem ridges; no true foliage leaves
- Stem: Cylindrical, segmented stems arranged in tight clumps; covered in raised tubercles
- Flower: Tiny, inconspicuous yellow-green cyathia at stem tips
Care Guide
Watering
Water when the top 5 cm of soil is completely dry; avoid waterlogging
Fertilization
Diluted low-nitrogen cactus fertilizer once monthly. Cease fertilization during autumn and winter dormancy
Dried eggshell powder top dressing：Crush dried eggshells into fine powder; sprinkle lightly on soil surface; avoid direct contact with stems to prevent sap irritationPruning
- Wear protective gloves to avoid contact with toxic milky sap during pruning
- Remove dead, damaged, or overcrowded stems at the base to improve airflow
- Trim leggy stems to maintain a compact, clumping shape in early spring
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA confirmed toxic; milky sap causes oral irritation, vomiting, and diarrhea
Humans: Milky sap causes skin and eye irritation; ingestion may trigger mild gastrointestinal distress
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for rock gardens, window sills, and small container displays
