Poaceae
Waxy mannagrass
Glyceria declinata
Also known as Glyceria declinata, Glyceria plicata var. nana, Floating mannagrass, Glyceria fluitans subsp. declinata
Native Plants · Aquatic Grass · Pond Margin · Wetland · Bog Plant · Water Garden · Perennial Grass · Streamside · Marginal Plant · Cool Season
Waxy mannagrass is an aquatic or semi-aquatic perennial grass best suited to the edges of ponds, streams, and boggy ground where soil remains wet or submerged. Plant it in full sun to partial shade and ensure a constant supply of moisture, as it will not tolerate dry conditions. It requires little maintenance once established and provides attractive texture along water features.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Keep soil wet to waterlogged; ideal for pond margins and boggy areas · Every 5-7 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -30°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-10b
Form & growth
Mature size and habit
- Mature height
- 6 in – 3 ft
- Spread
- 3 ft
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Austria, Azores, Baltic States, Belarus, Belgium, British Columbia, Canary Is., Chatham Is., Corse, Czechoslovakia, Denmark, East Himalaya, France, Germany, Great Britain, Hungary, Illinois, Ireland, Italy, Korea
- Attracts
- Birds
Sources: trefle, usda
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