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| Family | Polygonaceae | | Plant Type | herbaceous perennial | | Zone | USDA: 5a - 8b RHS: H EGF: H1 - H4 Australia: 1 - 2
| | Care Level | low, easy, suitable for beginners. | | Height | 5 - 15 cm (2 - 6 in) | | Spread | 30 - 45 cm (12 - 18 in) | | Light | full sun | | Soil Moisture | average, well-drained | | Soil Type | | | Soil pH | |
| | Description | The herbaceous perennial Persicaria affinis 'Superba' (knotweed) bears showy blossoms during mid-summer to early fall. | | Typical Uses | Ground cover. | | Cautions | Where conditions are favourable, Persicaria affinis 'Superba' (knotweed) can be invasive and may require maintenance to keep it under control. | | |
