PlantFun
Plant Needs
Sunlight
Requires full sun for optimal flowering; tolerates partial shade but may produce fewer blooms
Watering
Water deeply when the top 5 cm of soil is dry; drought-tolerant once established, avoid overwatering
Temperature
Thrives in warm temperate to hot climates; sensitive to frost, avoid temperatures below 10°C
Characteristics
- Leaf: Spiny, lobed, gray-green leaves with a waxy, pale coating
- Flower: Large, crepe-like white petals surrounding a dense cluster of yellow stamens
- Stem: Stiff, bristly stems lined with sharp, defensive spines
Care Guide
Watering
Keep soil evenly moist during active growth; allow top layer to dry slightly between waterings
Fertilization
Diluted balanced liquid feed once monthly. Avoid over-fertilization to prevent excessive foliage growth at the expense of blooms
Eggshell powder topdress：Grind dried eggshells to a fine powder; sprinkle 1 teaspoon around the base of each plant and water in lightly to release nutrientsPruning
- Deadhead spent blooms regularly to encourage extended flowering
- Remove yellowing or damaged foliage to improve airflow and reduce disease risk
- Cut back senescent stems to ground level after the plant finishes flowering to tidy the garden
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion leads to vomiting, diarrhea, and abdominal pain
Humans: Contains toxic alkaloids; ingestion causes gastrointestinal distress and dizziness
Garden Uses & Culture
Culture: N/A
Usage: Ornamental wildflower for native plant gardens; historical medicinal uses with caution due to toxicity
