trefle.io · Taken Apr 23, 2013 by Tela Botanica − Florent Beck (cc-by-sa)
Poaceae
Water mannagrass
Glyceria fluitans
Also known as Common mannagrass, Reed meadow grass, Floating manna grass, Poa fluitans
Zones 4–10Sun Full SunWater HighCare Low
Native Plants · Wetland · Aquatic · Pond · Bog · Grass · Rain Garden · Water
Pet-safeBeginner-friendlyAttracts pollinators
Currently out of stock everywhereStock updated 9/6/2026
A wetland grass that thrives in consistently moist to wet conditions and tolerates standing water. Perfect for pond margins, rain gardens, and bog areas where other grasses struggle. Requires little care once established in appropriate wet conditions.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Keep soil consistently moist to wet · Every 3-5 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5–5.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-10b
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Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 2 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Shallow
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Arkansas, Austria, Baltic States, Belarus, Belgium, Bulgaria, California, Central European Rus, Chile Central, Chile South, Colombia, Corse, Czechoslovakia, Denmark, East Aegean Is., East European Russia, Ecuador, Finland, France
- Attracts
- Birds
Sources: trefle, usda
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