PlantFun
Plant Needs
Sunlight
Full sun to partial shade; thrives in bright direct sunlight in cool climates, with partial shade to avoid scorching in hot regions
Watering
Allow soil to dry completely between waterings; avoid overwatering to prevent root rot in poorly drained soil
Temperature
Hardy to -15°C for short periods; avoid prolonged temperatures above 30°C to prevent foliage scorch
Characteristics
- Leaf: Gray-green, pinnately compound leaves with obovate leaflets, covered in fine hairs for drought resistance
- Flower: Clusters of small, bright yellow, four-petaled flowers
- Stem: Woody at base, branched, with a silvery, downy coating
Care Guide
Watering
Water when top 5 cm of soil is fully dry
Fertilization
Diluted balanced feed once every 6 weeks. Use low-nitrogen feed to prevent excessive foliage growth at the cost of flowering
Eggshell powder topdressing：Sprinkle a thin layer of crushed, dried eggshell powder on soil surface to boost alkalinity and calcium content; avoid direct contact with foliagePruning
- Trim faded flower heads to encourage extended blooming
- Cut back woody stems by one-third in early spring to promote dense new growth
- Remove dead or damaged foliage to maintain air circulation and reduce pest risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA lists Ruta species as toxic; ingestion may cause vomiting, diarrhea, and depression
Humans: Contains furanocoumarins; ingestion causes mild gastrointestinal irritation, skin contact may cause photosensitivity with sun exposure
Garden Uses & Culture
Culture: N/A
Usage: Ornamental rock garden plant; limited traditional herbal use due to toxicity
