PlantFun
Plant Needs
Sunlight
Prefers partial shade to full sun; tolerates dappled woodland shade, avoid intense midday sun in hot climates
Watering
Keep soil evenly moist during active growth; drought-tolerant once established, avoid waterlogging
Temperature
Hardy to USDA zones 3–9; survives harsh winter frosts and summer heat up to 30°C
Characteristics
- Leaf: Triangular, twice-pinnately compound leaves with serrated leaflets; bright green, aromatic when crushed
- Flower: Small white umbels, flat-topped clusters of tiny star-shaped blooms
- Stem: Hollow, grooved, upright stems branching near the top
Care Guide
Watering
Keep soil evenly moist during active growth; reduce watering during prolonged dry spells
Fertilization
No regular fertilization needed; overfeeding encourages aggressive spread. Do not fertilize to limit invasive growth and spread
Banana peel compost tea：Steep fully composted banana peels in water for 24 hours; dilute 1:20 before applying to avoid overfeeding and excessive spreadPruning
- Pull young plants by the entire root system to prevent rhizome spread
- Cut back flowering stems before seed set to limit self-seeding
- Install a 30 cm deep underground barrier to contain rhizomes in garden beds
- Remove any escaped shoots promptly to prevent colonization of new areas
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion causes gastrointestinal upset including vomiting and diarrhea
Humans: Contains furanocoumarins; contact may cause photodermatitis with sun exposure; ingestion causes mild oral irritation
Garden Uses & Culture
Culture: N/A
Usage: Historically used as a medicinal herb for gout; now primarily considered an invasive garden weed
