PlantFun
Plant Needs
Sunlight
Partial sun to full sun; tolerates light shade in warm, high-temperature regions
Watering
Requires consistent shallow water (5–30 cm depth); avoid stagnant, heavily polluted water
Temperature
Hardy to freezing temperatures; thrives in cool to temperate aquatic environments
Characteristics
- Leaf: Flat, linear leaves up to 30 cm long, bright green, floating or emergent
- Stem: Slender, hollow, creeping rhizomes anchor in shallow aquatic sediment
- Flower: Dense, branching panicles with small greenish spikelets
Care Guide
Watering
Maintain stable water depth; top up as evaporation occurs
Fertilization
Diluted aquatic plant feed once monthly. Use low-nitrogen aquatic fertilizer to prevent algal blooms
Freshwater aquarium water change：Use water from weekly freshwater aquarium changes directly as a gentle nutrient top-up; avoid adding water with high ammonia levelsPruning
- Thin overcrowded stems to improve water circulation and light penetration
- Remove dead or yellowing foliage in autumn to prevent excess decomposition buildup
- Trim spreading rhizomes in spring to control growth in small, contained ponds
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic to cats; no known toxic compounds
Humans: Non-toxic to humans; no reported adverse health effects from ingestion or contact
Garden Uses & Culture
Culture: N/A
Usage: Ornamental pond plant; provides shelter for small aquatic wildlife and fish fry
