PlantFun
Plant Needs
Sunlight
Requires full to partial sun to support flowering and healthy foliage growth; avoid dense shade which reduces bloom production
Watering
Requires consistent shallow freshwater (10–30 cm depth); avoid stagnant, polluted water to prevent stress and disease
Temperature
Thrives in cool to temperate freshwater; avoid prolonged temperatures above 28°C which may cause foliage decline
Characteristics
- Leaf: Dimorphic; submerged leaves are finely divided thread-like, floating leaves are rounded and peltate (stalk attached to leaf center)
- Flower: White petals with bright yellow centers; 2–3 cm diameter, held above water surface
- Stem: Slender, branching floating stems with fine roots anchoring to pond substrate
Care Guide
Watering
Maintain stable water level; top up with dechlorinated water as needed to prevent drying
Fertilization
Apply diluted aquatic plant fertilizer once monthly. Use slow-release aquatic fertilizer tablets inserted into substrate to target root uptake
Composted eggshell powder：Mix a small amount of finely ground, fully composted eggshell powder into the substrate every 2 months to support leaf and root health; avoid direct contact with floating foliagePruning
- Remove dead or decaying foliage regularly to maintain water quality and prevent nutrient buildup
- Thin overcrowded floating stems to improve light penetration for submerged leaves
- Trim spreading stems to control growth and prevent overcrowding in small pond spaces
- Cut back spent flower stalks to encourage new blooms during growing season
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; causes oral irritation, drooling, vomiting, and abdominal pain
Humans: Contains protoanemonin; ingestion causes oral burning, swelling, and nausea
Garden Uses & Culture
Culture: N/A
Usage: Ornamental pond plant; provides shelter for small aquatic wildlife such as tadpoles and water insects
