Koenigia polystachya

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<em>Koenigia</em> <em>polystachya</em> visionspictures.com

Synonyms

Persicaria wallichii
Persicaria polystachya
Polygonum polystachyum
Polygonum wallichii

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This plant is listed as an invasive non-native species in Northern Ireland – see Cultivation section for details A vigorous, herbaceous perennial to about 1.5m tall, producing dense clumps of stems clothed with pointed, lance-shaped leaves. Produces branched sprays of small, creamy-white, strongly scented flowers in late summer and early autumn

Colour & Scent

Fragrance Flower
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Polygonaceae
Native to GB/Ireland
No
Genus
A genus of annual or clump-forming perennial plants with terminal or axillary inflorescences carried on upright stems. Flowers are small, pale-coloured usually white or pink. Seeds are borne in achenes
Name Status
Correct
Plant Range
S Asia

How to Grow

Cultivation

This plant is on the EU list of Invasive Alien Species of Union Concern (applies in NI). It should not be planted or caused to grow in the wild in Northern Ireland, where it is also banned from sale, and gardeners who already have it should take steps to control it. See RHS advice on invasive non-native species for further information

Propagation

See cultivation notes

Pruning

See cultivation notes

Pests

See cultivation notes

Diseases

See cultivation notes