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Glyceria maxima
Also called Reed sweet-grass, English Watergrass, Great Water Grass, Giant Mannagrass, Reed Meadowgrass, Reed Meadow Grass, Rough Mannagrass
Reed mannagrass is a tall, rhizomatous perennial grass that grows in wet ground such as riverbanks, ponds and ditches. It spreads aggressively and is often treated as a weed outside its native range, so it is grown mainly in wetland or pond-margin planting where its spread can be controlled.
Glyceria maxima (syn. G. aquatica (L.) Wahlenb.; G. spectabilis Mert. & W.D.J. Koch; Molinia maxima Hartm.; Poa aquatica L.), imfe Nd commonly known as great manna grass, reed mannagrass, reed sweet-grass, and greater sweet-grass is a species of rhizomatous perennial grasses in the mannagrass genus native to Europe and Western Siberia and growing in wet areas such as riverbanks and ponds. It is highly competitive and invasive and is often considered to be a noxious weed outside its native range.
Small floating mannagrass · Water mannagrass · American mannagrass · Davy mannagrass
Text excerpted from the Wikipedia article Glyceria maxima by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
