American willowherb

Also known as: Information to be completed

A fast-growing, clump-forming herbaceous perennial to 1.5m high, with narrowly ovate, finely toothed green leaves often tinged with red, and numerous small, trumpet shaped pink or white flowers

American willowherb

Scientific classification

Species
American willowherb (Epilobium ciliatum)
Genus
Epilobium
Family
Onagraceae
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Toxicity
Herbaceous Perennial
Plant type
1-1.5 metres
Height
0.1-0.5 metres
Spread
Deciduous
Foliage
Columnar upright
Habit
Spring · Summer · Autumn
Season of interest
Full shade · Full sun · Partial shade
Sunlight
Information to be completed
Ideal temperature

American willowherb pictures

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Distribution of American willowherb

Distribution map

Plant distribution
  • Native
  • Introduced
  • Cultivated

Source:WCVP v16 · Royal Botanic Gardens, Kew · CC BY 3.0 · Boundaries:WGSRPD / TDWG

Culture

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Toxicity

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Quick identification of American willowherb

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American willowherb care guide

Moderate regular watering, allowing brief slight drying between soakings
Watering
Full shade · Full sun · Partial shade
Sunlight
Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

No pruning required

Propagation

Propagates by seed produced prolifically through the growing season and wind-dispersed. In favourable conditions, life cycle from germination to seed production can complete in ten weeks.

Growing

Grows best in moist soil in well-lit conditions, but will tolerate shade and a range of soil types. Spreads rapidly, generally considered a weed.

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Common pests and diseases

Diseases

Generally disease-free

Pests

Generally pest-free

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