trefle.io · CC-BY-SA
Araceae
Spirodela polyrhiza
Spirodela polyrhiza
Also known as Lemna orbiculata, Spirodela atropurpurea, Telmatophace polyrhiza, Lemna maxima
Native Plants · Aquatic · Floating · Pond Plant · Water Garden · Duckweed · Wildlife Pond · Water Feature · Native · Fast-Spreading
Greater duckweed (Spirodela polyrhiza) is a free-floating aquatic plant that grows naturally on the surface of calm, nutrient-rich freshwater ponds and water features. It spreads quickly under good light conditions and helps reduce algae by shading the water and absorbing excess nutrients. Ideal for wildlife ponds, it requires no soil and minimal care beyond occasional thinning.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Aquatic plant — keep fully in standing fresh water at all times · Continuously submerged or floating on water surface
- Maintenance
- Low
- Soil pH
- 5.5–6.5
- Cycle
- Perennial
Form & growth
Mature size and habit
- Spacing
- 3 in apart
- Growth rate
- Moderate
- Flowers
- No
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Albania, Alberta, Altay, Arizona, Arkansas, Austria, Baltic States, Bangladesh, Belarus, Belgium, Belize, Benin, Borneo, Botswana, British Columbia, Bulgaria, Burundi, Buryatiya, California
- Attracts
- Birds
Sources: trefle, usda
Buy this plant
No nurseries currently list it
No nursery lists Spirodela polyrhiza right now.