PlantFun
Plant Needs
Sunlight
Tolerates partial shade to full sun; avoid intense midday direct sun to prevent frond scorching
Watering
Requires constant access to still, clean freshwater; maintain stable water levels to support mat growth
Temperature
Thrives in 15–25°C; tolerates brief drops to 5°C but cannot survive freezing conditions
Characteristics
- Frond (Leaf): Oval to rounded bright green fronds, 1–3 per individual plant; most have one fine, thread-like root
- Flower: Inconspicuous tiny greenish flowers enclosed in a membranous sac; rarely produced in cultivation
- Growth Habit: Spreads rapidly to form dense floating mats on still freshwater surfaces
Care Guide
Watering
Top up water levels as needed to maintain consistent depth; test monthly for pH balance
Fertilization
Diluted aquatic plant feed every 2 weeks. Avoid over-fertilization to prevent harmful algal blooms that can outcompete duckweed
Compost vegetable tea：Steep fully composted vegetable scraps in water for 3 days, dilute 1:20 before adding to water features; discard solid scraps to avoid water contaminationPruning
- Thin dense frond mats to prevent oxygen depletion in underlying water
- Skim discolored or decaying fronds to maintain water clarity
- Remove excess growth to avoid covering the entire water surface, which can block light for submerged aquatic life
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA-verified non-toxic to cats; no toxic compounds identified
Humans: Non-toxic to humans; no reported adverse effects from ingestion or contact
Garden Uses & Culture
Culture: N/A
Usage: Aquatic cover for pond wildlife; natural water filtration; supplemental feed for waterfowl and fish
