Chamaenerion angustifolium 'Album'
(White Rosebay Willowherb)
Family - Onagraceae
Category - Perennial
Season of Interest - Summer, Autumn
Hardiness - H7
Height - up to 2m
Width - 90cm or more
Location - The White Garden
Description: A herbaceous Perennial with a spreading, upright habit. The mid to dark green leaves are linear to lanceolate in shape and held in spirals on the tall stems. White flowers are saucer-shaped and have narrow pale green sepals. The Blooms are held in spire-like Racemes towards the tops of the stems and are produced from midsummer into early autumn. The flowers are followed by masses of silky white seeds. Attractive to pollinating insects.
Often considered an aggressive weed, Chamaenerion angustifolium 'Album' can be of considerable ornamental value in a border if kept under control.
Synonym- Epilobium angustifolium f. album
Flower:
Tall, upright racemes of pure white, saucer-shaped flowers with thin, green sepals are produced from late June into September. The flowers are followed by long, thin capsules which eventually split to release white, silky seed.
Flower colour: White
Flower shape: Saucer-shaped flowers held in racemes
Flowering time: June, July, August, September
Foliage:
Mid to dark green lanceolate leaves are held on tall, vertical stems. Angustifolium means 'with narrow leaves'. The common name, White Rosebay Willowherb, is in reference to the willow-like foliage. The leaves are arranged in spirals up the tall, vertical stems.
Foliage Senescence: Deciduous
Foliage Shape: Linear to lanceolate
Propagation:
Seed, division, cuttings.
Cultivation:
Best in full sun to partial shade in moisture-retentive soil that is well-drained. Chamaenerion angustifolium 'Album' has a tendency to spread rapidly, so will need ample space and to be controlled.