PlantFun
Plant Needs
Sunlight
Full sun to partial shade; blooms most profusely in full sun, tolerates light shade in hot climates
Watering
Water deeply when the top 5 cm of soil dries out; avoid overwatering to prevent root rot
Temperature
Extremely cold-hardy, tolerating temperatures as low as -40°C; thrives in cool to temperate climates
Characteristics
- Leaf: Pinnately compound leaves with 11–25 serrated leaflets, bright green turning golden yellow in autumn
- Flower: Dense, conical panicles of tiny five-petaled white flowers, fragrant in warm weather
- Stem: Erect, woody brown stems forming dense, spreading clumps over time
Care Guide
Watering
Keep soil consistently moist during active growth periods
Fertilization
Apply balanced slow-release fertilizer once in early spring. Do not over-fertilize, as excessive nutrients may reduce flower production
Eggshell powder topdressing：Crush clean, dried eggshells into fine powder; sprinkle 1 tablespoon around the plant base and water thoroughly to release calcium into the soilPruning
- Deadhead spent flower panicles to maintain a tidy appearance and encourage potential late-season rebloom
- Thin overcrowded stems in late winter to improve air circulation and reduce disease risk
- Cut back old, woody stems to ground level every 3–4 years to rejuvenate clumps and promote vigorous new growth
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats
Humans: No known toxic effects on humans
Garden Uses & Culture
Culture: N/A
Usage: Ornamental garden shrub for borders and mass plantings; erosion control on slopes
