PlantFun
Plant Needs
Sunlight
Partial sun to full sun; provide afternoon shade in hot, arid regions to prevent leaf scorch
Watering
Water deeply when the top 2–3 cm of soil is dry; avoid waterlogging to prevent root rot
Temperature
Hardy to -20°C; thrives in cool to temperate conditions; avoid prolonged exposure to temperatures above 32°C
Characteristics
- Leaf: Basal leaves are ovate with serrated margins; stem leaves are pinnately divided
- Flower: Tiny, fragrant white to pale pink flowers arranged in dense terminal clusters
- Stem: Erect, hollow green stems with fine pubescence
Care Guide
Watering
Keep soil consistently moist but not waterlogged; increase frequency during prolonged dry spells
Fertilization
Apply diluted balanced organic feed once monthly. Avoid over-fertilization, as it can reduce flower fragrance and medicinal potency
Eggshell powder topdressing：Crush dried eggshells into fine powder; sprinkle 1–2 tbsp around the base of plants and work lightly into the topsoil to boost soil structure and calcium levelsPruning
- Deadhead spent flower spikes promptly to encourage prolonged blooming and prevent self-seeding
- Cut back stems to ground level after flowering to promote fresh basal growth for the following season
- Thin overcrowded clumps in early spring to improve airflow and reduce disease risk
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats; no known adverse effects from ingestion
Humans: Mild drowsiness, headache, or upset stomach may occur with excessive ingestion; generally safe for moderate medicinal use
Garden Uses & Culture
Culture: Associated with calm, sleep, and relaxation in traditional European herbalism; historically used in wedding rituals for its soothing scent
Usage: Medicinal herb for sleep support and anxiety relief; ornamental garden plant for pollinator attraction
