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BogsHerbaceous Perennial

Callitriche hermaphroditica

autumnal water starwort

A submerged aquatic perennial with slender stems bearing linear leaves. Useful as an oxygenating plant for ponds and aquaria

Other common names
water starwort
star grass
see morebrigwlyyd cynhaeaf
Synonyms
Callitriche autumnalis
Size
Ultimate height
Up to 10cm
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Loam
Moisture
Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring
Summer Green
Autumn
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

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

Callitriche can be terrestrial or aquatic perennials with slender stems bearing linear or spoon-shaped leaves and minute flowers in summer, useful oxygenating plants for ponds

Name status

Correct

Plant range
N America, Europe

How to grow

Cultivation

Grow in baskets to restrict spread, in a peat-free, loam-based potting compost in full sun or partial shade. Submerge baskets in water 45-60cm deep

Propagation

Propagate by softwood cuttings of terminal shoots

Suggested planting locations and garden types
  • Low Maintenance
Pruning

No pruning required. Cut back after flowering

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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