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Zones 1-9, 14-17, 31, 32
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Persicaria affinis

Knotweed
Polygonaceae
Ground covers, Perennials

PERSICARIA

Sturdy easy-to-grow plants with handsome leaves and showy white or pink flowers. Some kinds tend to get out of hand and need to be controlled.

Persicaria affinis

Himalayan native. Spreading plant to 1 ft. high and 2 ft. or more wide. Deep green, lance-shaped, finely toothed leaves are mostly basal; they growto  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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