Persicaria affinis 'Darjeeling Red' (Darjeeling Red Knotweed)
Botanical Information
| Family | Polygonaceae |
| Genus | Persicaria |
| Species | affinis |
| Cultivar | 'Darjeeling Red' |
| Synonyms | Polygonum affine 'Darjeeling Red' |
| Category | Perennials |
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 | 0.1 - 0.5 m |
| Spread | 0.1 - 0.5 m |
| Growth | Medium |
| Flowering Period | July, August, September, October |
Description and Growing Information
| 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 pink and red. |
| Shape | Mat-forming. |
| Landscape | Ground cover, banks, slopes, flower borders, flower beds, garden edging. |
| Propagation | Propagate by 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. |
| Habitat | Horticultural origin. |
Photographs
Persicaria affinis 'Darjeeling Red', form. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/1029.
Persicaria affinis 'Darjeeling Red', leaf. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/1029.
Persicaria affinis 'Darjeeling Red', flower. Trebah Gardens, Mawnan Smith, Nr Falmouth, Cornwall. 15/10/1029.
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