Perennials > Polygonum > Polygonum weyrichii > Polygonum weyrichii
Polygonum weyrichii
Origin: Eastern Asia and Japan (Sakhalin Island).
| Family |
| Polygonaceae |
| Genus |
| Polygonum |
| Species |
| weyrichii |
| Category |
| Perennials |
| Synonyms |
| Aconogonum weyrichii |
| USDA Hardiness Zone |
| 4 - 8 |
| RHS Hardiness Zone |
| H7 - H5 |
| Temperature (°C) |
| -30 |
| Temperature (°F) |
| -10 |
| Height |
| 1.5 m |
| Spread |
| 0.5 - 1 m |
Photographs
Cultivars
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Description and Growing Information
Flowering Period
| Landscape |
| As ground cover, as hedges and borders or screens. |
| Cultivation |
| Plant under partial sun to partial shade in moisture-retentive soils. |
| Shape |
| Mounding. |
| Growth |
| Medium |
| Pests |
| No known pests or diseases. |
| Habitat |
| Gravelly Alpine slopes. |
| Leaf Description |
| Simple, broad-ovate to pinnate leaves with small hair-like fibres on the over and undersides. |
| Flower Description |
| Inflorescences of 30 - 50 tiny flowers measuring 1 - 2 mm in diameter. |
| Colour Description |
| Medium green foliage and yellow-green flowers. |
| Texture Description |
| Fibrous. |
| Notable Specimens |
| University of Alberta Botanic Garden, Devon, Alberta, Canada. |
| Propagation |
| By seed in spring or division in autumn. |
| Ethnobotanical Uses (Disclaimer) |
| Seeds can be ground into a meal for flours and porridge. |
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