Persicaria amplexicaulis 'Blackfield' - 2026

Persicaria amplexicaulis ‘Blackfield’ is a bold and striking perennial, known for its deep crimson-red flower spikes that stand tall above a base of large, lush green leaves. The rich colouring of the flowers creates a dramatic display, particularly effective when planted in bold groups or used to punctuate mixed borders. Flowering from midsummer well into autumn, it provides a valuable nectar source for bees, butterflies, and other pollinators, making it as beneficial for wildlife as it is decorative.

This hardy and low-maintenance plant thrives in moist, well-drained soil and prefers a position in full sun to partial shade. Perfectly suited to the UK climate, it requires little more than cutting back old stems in late winter to prepare for fresh spring growth. With its long flowering season, robust nature, and strong architectural presence, Persicaria amplexicaulis ‘Blackfield’ is a reliable choice for adding long-lasting colour and structure to the garden.