Epilobium hirsutum

RHS Plant Profile
great willowherb

Other common names

apple pie, cherry pie, codlins and cream, custard cups, fiddle grass, gooseberry pie, great hairy willowherb, helyglys pêr

Plants for pollinators
Herbaceous Perennial

A very strong-growing herbaceous perennial, spread by rhizomes making dense mats of roots. Stems up to 2m in height are clothed in dark green, hairy, narrow lance-shaped leaves. Mid-pink flowers are borne in summer and are particularly attractive to hoverfiles and other pollinators

Position

Full sun, Partial shade

Soil Types

Sand, Loam, Clay, Chalk

Max Height

1.5-2.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
2–5 years
Max Spread
1-1.5 metres
Max Height
1.5-2.5 metres

Growing Conditions

Sand Loam Clay Chalk
Moisture
Poorly–drained or Moist but well–drained
pH
Neutral or Alkaline or Acid

Position

Full sun Partial shade
Aspect
West–facing or South–facing or North–facing or East–facing
Exposure
Exposed or Sheltered
Hardiness
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Onagraceae
Native to GB/Ireland
Yes
Foliage
Deciduous
Habit
Clump forming
Genus
Epilobium can be annuals or perennials, sometimes invasive, with erect stems bearing willowy leaves and showy, 4-petalled flowers in terminal racemes
Name Status
Correct

How to Grow

Cultivation

Ideal for damp, wild areas such as streamsides or marshy ground where the roots can spread freely. Will also grow in well-drained soil and needs full sun to thrive. Excellent plant for attracting pollinating species. See willowherbs for more information

Propagation

Propagate by division in autumn or spring, or by seed as soon as ripe or in spring

Suggested planting locations and garden types

  • Wildlife gardens
  • Wildflower meadow
  • Prairie planting

Pruning

Cut back at the end of the year, when foliage dies back

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to rust diseases and powdery mildews