Persicaria campanulata (lesser knotweed)
Botanical Information
| Family | Polygonaceae |
| Genus | Persicaria |
| Species | campanulata |
| Synonyms | Polygonum campanulata |
| Category | Perennials |
| Origin | Native to the Himalaya region. |
Details
| USDA Hardiness Zone | 6 - 7 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 6b |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | Greater than -20 |
| Temperature (°F) | Greater than 4 |
| Height | 0.5 - 1 m |
| Spread | 0.5 - 1 m |
| Growth | Fast |
| Flowering Period | June, July, August, September |
Description and Growing Information
| General Description | An herbaceous perennial with ovate leaves starting white and paling to brown during autumn. Sprawls of bell=shaped, pink flowers bloom in summer. |
| Shape | Mat-forming. |
| Landscape | Ground cover, flower borders, flower beds, garden edging. |
| Propagation | Propagate by seed or division in spring. |
| Cultivation | Grow in moist but well-drained soil in sun or partial shade. |
| Pests | No notable pests or diseases. |
| Notable Specimens | Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. |
Photographs
Persicaria campanulata, form. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/2019.
Persicaria campanulata, leaf. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/2019
Persicaria campanulata, flower. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/2019