Perennials > Polygonum > Polygonum affine > Polygonum affine
Polygonum affine
Knotgrass
Origin: Native to the Himalaya region.
| Family |
| Polygonaceae |
| Genus |
| Polygonum |
| Species |
| affine |
| Category |
| Perennials |
| Synonyms |
| Persicaria affinis |
| USDA Hardiness Zone |
| 6 |
| Canadian Hardiness Zone |
| 6a - 6b |
| RHS Hardiness Zone |
| H7 |
| Temperature (°C) |
| Greater than -20 |
| Temperature (°F) |
| Greater than 4 |
| Height |
| 0.1 - 0.5 m |
| Spread |
| 0.5 - 1 m |
Photographs
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Cultivars
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Description and Growing Information
Flowering Period
| General Description |
| An herbaceous perennial with elliptical leaves that transition from dark green through multiple tones of red, yellow, and bronze during the autumn. Flowers bloom in lance-like clusters, opening up as bright red/pink in midsummer and turn brown during winter. |
| Landscape |
| Ground cover, banks, slopes, flower borders, flower beds, garden edging. |
| Cultivation |
| Grow in moist but well-drained soil in sun or partial shade. |
| Shape |
| Mat-forming. |
| Growth |
| Medium |
| Pests |
| No notable pests or diseases. |
| Habitat |
| Growing in temperate regions of the northern hemisphere. |
| Propagation |
| Propagate by seed or division in spring. |
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