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Potamogeton polygonifolius
Also called Cinnamonspot Pondweed, Cinnamon Spot Pondweed, Oblong Leaved Pondweed
Bog pondweed is a perennial aquatic plant that grows from creeping rhizomes in shallow, nutrient-poor, acidic water, bogs and fens. It is easy to grow in a garden pond with shallow water, but struggles in nutrient-rich, hard water.
Potamogeton polygonifolius or bog pondweed is an aquatic plant. It is found in shallow, nutrient-poor, usually acid standing or running water, bogs, fens and occasionally ditches.
Bog pondweed is not in general cultivation, although it is easy to grow. Its preference for shallow water makes it very suitable for a garden pond, but it would probably be difficult to establish in high nutrient, hard water areas.
Potamogeton polygonifolius is mainly restricted to western Europe (Britain, Ireland, France, Netherlands, Belgium, Denmark). It is more localised in the rest of its range including Northern Iberia, Germany, mainland Italy, Sicily, southern Scandinavia, the Baltic states, the Balkans and eastern Europe. There are outlying populations in North Africa (Morocco, Algeria), Orkney, Shetland, the Faroes and Newfoundland, and fossils have been found in Russia. The taxonomic status of populations in the Himalayas requires confirmation. A record from China was based on a misidentification of P. distinctus.
Alpine pondweed · Small Pondweed · Fen Pondweed · Grass-wrack pondweed · Curly pondweed · Little-leaf pondweed · Pondweed · Waterthread pondweed · Ribbonleaf pondweed · Variableleaf pondweed · Illinois pondweed · Potamogeton ×inbaensis
Text excerpted from the Wikipedia article Potamogeton polygonifolius 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.
