PlantFun
Plant Needs
Sunlight
Moderate sunlight penetration through water surface to support photosynthesis; avoid deep, fully shaded water
Watering
Requires standing, slow-moving freshwater; maintain consistent water level to prevent drying
Temperature
Thrives in cool to temperate aquatic temperatures; avoid prolonged exposure above 28°C which may cause leaf dieback
Characteristics
- Leaf: Two distinct leaf types: narrow linear submerged leaves (10–30 cm long) and elliptical floating leaves (5–10 cm long)
- Flower: Dense greenish-brown spikes that emerge 5–10 cm above the water surface
- Stem: Slender, branching submerged stems with distinct nodes for root anchorage
Care Guide
Watering
Refresh 20% of water monthly to maintain water quality
Fertilization
Diluted aquatic plant fertilizer once monthly. Use low-nitrogen fertilizer to prevent excessive algae growth
Dechlorinated aquarium water runoff：Use water from monthly aquarium water changes to top up the pond; avoid overapplication to prevent nutrient overloadPruning
- Trim yellowing or decaying submerged leaves to maintain water clarity
- Thin overcrowded floating leaves to improve light penetration for submerged foliage
- Remove spent flower spikes to prevent organic buildup in water
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Non-toxic to cats; no adverse effects reported
Humans: No known toxicity to humans; safe for incidental contact
Garden Uses & Culture
Culture: N/A
Usage: Aquatic habitat for small fish and invertebrates; aids in water nutrient filtration
