PlantFun
Plant Needs
Sunlight
Partial sun to full shade; tolerates dappled sunlight in water garden settings
Watering
Thrives in consistently moist or submerged soil; maintain water level 2–5 cm above root zone
Temperature
Tolerates cool temperatures down to 5°C; protect from frost damage in winter
Characteristics
- Leaf: Bright green compound pinnate leaves with serrated leaflets; crisp, edible texture
- Flower: Tiny white umbel-shaped clusters forming flat-topped inflorescences
- Stem: Hollow, succulent pale green stems with reddish bases
Care Guide
Watering
Keep substrate fully saturated or submerged; replenish water as needed to maintain level
Fertilization
Diluted aquatic plant fertilizer every 2 weeks. Avoid over-fertilization to prevent excessive algal blooms
Composted banana peel tea：Steep fully composted banana peels in water for 3 days; dilute 1:20 for root drench; avoid raw peels to prevent water foulingPruning
- Trim yellowing foliage regularly to maintain tidy growth and improve airflow
- Harvest outer leaves for culinary use to encourage new, tender growth
- Cut back spent flower heads to redirect energy to foliage production
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA does not list this species as toxic to cats
Humans: Edible as a leafy vegetable; safe for human consumption when correctly identified (avoid toxic Oenanthe lookalikes)
Garden Uses & Culture
Culture: Used in Korean, Japanese, and Chinese cuisine as a fresh herb or cooked vegetable
Usage: Culinary herb, aquatic ornamental plant for ponds and water features
