PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in hot, dry conditions and tolerates reflected heat
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot and fungal growth
Temperature
Hardy to 5°C; prefers warm, arid climates; protect from prolonged frost and freezing temperatures
Characteristics
- Leaf: Linear to narrowly oblong, gray-green, aromatic when crushed
- Flower: Small, bright yellow, clustered in terminal cymes
- Stem: Woody at base, branching, covered in fine hairs
Care Guide
Watering
Water when top 5 cm of soil is fully dry; avoid wetting foliage to prevent photodermatitis risks
Fertilization
Diluted balanced liquid feed once every 4 weeks. Use low-nitrogen feed to promote compact growth and flowering rather than excessive foliage
Eggshell powder top dressing：Crush fully dried eggshells into fine powder; sprinkle 1 tsp around the base of the plant every 3 months to boost soil alkalinity and support cell structurePruning
- Remove spent flower heads promptly to encourage bushier, more compact growth
- Trim leggy or overgrown stems in early spring to maintain desired shape
- Remove damaged, yellowing, or diseased foliage to improve airflow and reduce pest risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; may cause vomiting, diarrhea, abdominal pain, and tremors
Humans: Ingestion causes oral irritation and nausea; skin contact may trigger phytophotodermatitis if exposed to sunlight
Garden Uses & Culture
Culture: Historically associated with purification rituals and traditional medicinal use with caution
Usage: Ornamental garden plant for arid landscapes; limited herbal use due to toxicity risks
