Chamaenerion angustifolium f. album (White-flowered rosebay willowherb)

Botanical name

Chamaenerion angustifolium f. album

Other names

White-flowered rosebay willowherb, Chamerion angustifolium 'Album', Epilobium angustifolium , Chamaenerion angustifolium f. album, Epilobium angustifolium f. leucanthum, Epilobium angustifolium var. album, Epilobium angustifolium alba, Epilobium angustifolium f. album, Epilobium angustifolium 'Album'

Genus

Chamaenerion Chamaenerion

Species

C. angustifolium f. album - C. angustifolium f. album is a vigorous, spreading, deciduous perennial with erect stems bearing linear to lance-shaped, mid-green leaves and upright racemes of white flowers from midsummer to early autumn.

Native to

Garden origin

Foliage

Deciduous

Habit

Upright

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Colour

Flower

White in Summer; White in Autumn

Foliage

Green in Spring; Green in Summer; Green in Autumn

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How to care

Watch out for

Specific pests

Slugs , Snails

Specific diseases

Powdery mildew , Rust

General care

Pruning

Deadhead to prolong flowering and to prevent self-seeding.

Propagation methods

Division, Seed, Softwood cuttings

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Monthly care advice

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Where to grow

Chamaenerion angustifolium f. album (White-flowered rosebay willowherb) will reach a height of 2.5m and a spread of 1m after 2-5 years.

Suggested uses

Wildflower, Prairie planting, Cottage/Informal, Beds and borders, Wildlife

Cultivation

Grow in humus-rich, moist but well-drained soil in sun or partial shade. Site carefully as may become invasive.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Shade

Aspect

North, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 7, Zone 6, Zone 5, Zone 4, Zone 3