Persicaria polymorpha - 2026

Persicaria polymorpha is a striking perennial valued for its tall, arching panicles of creamy-white flowers that appear from late summer into autumn. The large, green foliage forms dense clumps that provide a lush backdrop, while the impressive flower spikes add height, movement, and a soft architectural element to borders, naturalistic plantings, or wildlife gardens. Its long flowering period attracts bees, butterflies, and other pollinators, enhancing both ornamental and ecological value.

Thriving in moist, fertile soil, this hardy perennial prefers full sun to partial shade and forms vigorous clumps that require minimal maintenance, with old stems cut back in late winter to encourage fresh spring growth. Well suited to the UK climate, Persicaria polymorpha combines durability, long-lasting colour, and striking form, making it a standout choice for gardeners seeking height, texture, and seasonal interest.