Zones 1-9, 14-17, 31, 32
Full, Partial
Moderate
Persicaria affinis
Knotweed
Polygonaceae
Ground covers, Perennials
PERSICARIASturdy plants with jointed stems and small white or pink flowers. Some kinds tend to get out of hand and need to be controlled.
Persicaria affinisHimalayan native. Spreading plant to 1 ft. high, 2 ft. or more wide. Deep green, lance-shaped, finely toothed leaves are mostly basal; they grow 2–4 1/2 in. long, turn bronze in winter. Dense, erect, 2–3-in. spikes of bright rosy red flowers bloom in summer, early fall.
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