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Potamogeton crispus

curled pondweed

A perennial with narrowly lance-shaped or oblong submerged leaves with strongly undulate margins when mature, but no floating leaves, and insignificant reddish flowers in summer

Other common names
curly pondweed
water calthrops

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Size
Ultimate height
Up to 10cm
Time to ultimate height
5–10 years
Ultimate spread
1–1.5 metres
Growing conditions
Loam
Sand
Moisture
Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Brown Red Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

North–facing or South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Potamogetonaceae
Native to GB / Ireland
Yes
Foliage
Deciduous
Habit
Submerged
Genus

Potamogeton can be marginal or deep water aquatic perennials, with translucent submerged and leathery floating leaves, and small spikes of inconspicuous flowers held below or just above water level

Name status

Correct

How to grow

Cultivation

Grow in baskets of sandy loam in the bottom mud of the pond, in full sun or partial shade. See pond plants for further advice

Propagation

Propagate by stem cuttings from mid spring to early summer

Suggested planting locations and garden types
  • Low Maintenance
Pruning

Thin on a regular basis to keep in check

Pests

Generally pest-free

Diseases

Generally disease-free

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