Spirodela polyrhiza
Spirodela polyrhiza
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.
Care Level
Low
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
—
Life Cycle
Perennial
Spacing
3″
Watering Schedule
Continuously Submerged Or Floating On Water Surface • Aquatic Plant — Keep Fully In Standing Fresh Water At All Times
Soil pH
5.5 – 6.5
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — CC-BY-SA
No nurseries currently have this species in stock.