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AquaticHerbaceous Perennial

Hydrocotyle sibthorpioides

lawn pennywort

An aquatic or marginal, low-growing, creeping perennial forming a dense mat of small, kidney-shaped to rounded, shallowly-lobed leaves with toothed margins. Small clusters of tiny, greenish flowers may be borne from late spring into summer

Other common names
water pennywort
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Size
Ultimate height
Up to 10cm
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Green
Summer Green Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Araliaceae
Native to the UK
No
Foliage
Deciduous
Habit
Matforming, Submerged, Floating
Name status

Correct

How to grow

Cultivation

Grow in full sun or partial shade in moisture-retentive soils in bog gardens or at pond margins or grow shallowly submerged in water up to 25cm deep. See pond plants and bog gardens for further advice

Propagation

Propagate by division

Suggested planting locations and garden types
  • Low Maintenance
Pruning

Cut back regularly to control spread

Pests

Generally pest-free

Diseases

May be susceptible to mint rust

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