PlantFun
Plant Needs
Sunlight
Full direct sunlight; tolerates partial shade for short periods, best in unobstructed desert sunlight
Watering
Water deeply only when soil is completely dry; avoid overwatering to prevent root rot
Temperature
Hardy to -10°C; withstands high desert heat, avoid prolonged exposure to temperatures below -12°C
Characteristics
- Leaf: Narrow, rigid leaves with white marginal threads and sharp terminal spines, gray-green hue
- Flower: Tall flowering stalk (2–3 m) with small greenish-yellow, bell-shaped blooms
- Stem: Short, underground rhizome; no visible aboveground stem
Care Guide
Watering
Water once every 2–3 weeks when soil is fully dry
Fertilization
Diluted feed once every 2 months. Use low-nitrogen, phosphorus-rich diluted succulent feed; avoid fertilizing in winter
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface; avoid direct contact with leavesPruning
- Remove dried outer leaves to maintain rosette shape and improve airflow
- Trim dead flower stalk after blooming (plant dies after flowering)
- Use thick gloves to avoid injury from sharp spines during maintenance
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion causes vomiting, diarrhea, depression, hypersalivation
Humans: Contains saponins; ingestion causes mild gastrointestinal irritation, contact may irritate skin
Garden Uses & Culture
Culture: N/A
Usage: Ornamental succulent for rock gardens and xeriscaping
