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Great Willowherb Epilobium hirsutum 

 
 
Wildlife GardenWildlife garden plant
Attracts BeesBees are attracted to this plant
Attracts ButterfliesButterflies are attracted to this plant
Attracts HoverfliesHoverflies are attracted to this plant
Perennial Life CyclePerennial life cycle
Funnel-Shaped FlowersFunnel-shaped flowers
Purple FlowersPurple flowers
4 Petals4 petals
Jul-Sep Flowering
period
Elongated LeavesElongated leaves
Forwardly-Toothed LeavesForwardly-toothed leaves
Round StemRound stem
Fibrous RootsFibrous roots
200cmMaximum height
 
 
  Main image of Great Willowherb
© 2021 Adrian Briggs
 

Great Willowherb is a native perennial plant of the UK, typically found growing in water margins, damp ground and waste ground, to a mature height of up to 200cm.

Great Willowherb, as the name suggests, is larger than other willowherbs. In common with other willowherbs, it has elongated leaves with a finely-serrated edge, and similar shape, to those of willow species. Its purple, magenta or white, notch-petalled flowers are borne on individual stalks in clusters at the end of its branched stems. These stalks later give way to seed pods, which split open to send out feathery seeds on the wind.

Botanic classification and naming: Great Willowherb is a member of the Evening Primrose (Onagraceae) family. The genus name 'Epilobium' identifies the plant as a Willowherb and its species name 'hirsutum' means 'hairy plant'.

Benefits: Pollinated by bees and hoverflies.

Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.

 

 
Flower of Great Willowherb

© 2021 Adrian Briggs

 

Flowers:
Great Willowherb usually flowers between July and September.

Flower colour:

Flower Colour Purple

Purple

Flower shape:

Flower Shape  Funnel

Funnel

Petals:

Petal Number =  4

4

Leaf of Great Willowherb

© 2021 Adrian Briggs

 

Leaves:

Leaf Shape:

Leaf Shape is Elongated

Elongated

Leaf Margins:

Leaf Margin is forwardly-toothed

forwardly-toothed

Stem of Great Willowherb

© 2021 Adrian Briggs

 

Stem and Roots:

Stem shape:

Stem Shape is Round

Round

Root type:

Root Type is Fibrous

Fibrous