Lesser Knotweed 'Superba', East Indian Knotweed 'Superba', Himalayan Knotweed 'Superba', Bistorta affinis 'Superba', Polygonum affine 'Superba', Persicaria affinis Dimity
Vigorous, Persicaria affinis ‘Superba’ (Lesser Knotweed) is a mat-forming, semi-evergreen perennial boasting charming spikes, 3 in. long (8 cm), densely packed with tiny, pale pink flowers that deepen to crimson as they mature. Blooming for weeks from midsummer into fall, the blossoms are borne above the foliage mat of elliptic to lance-shaped, deep green leaves which turn bronzy-red in the fall. This dwarf variety makes a wonderful ground cover for the garden.
| Hardiness |
5 - 8 |
|---|---|
| Heat Zones |
1 - 8 |
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17 |
| Plant Type | Perennials |
| Plant Family | Polygonaceae |
| Genus | Persicaria |
| Common names | Knotweed |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Mid, Late) Fall |
| Height |
6" - 1' (15cm - 30cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
18" - 24" (50cm - 60cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Plant of Merit, Showy, Semi-Evergreen |
| Tolerance | Drought, Deer |
| Garden Uses | Banks And Slopes, Beds And Borders, Edging, Ground Covers, Underplanting Roses And Shrubs |
| Garden Styles | Informal and Cottage, Gravel and Rock Garden, Traditional Garden, City and Courtyard |
| Hardiness |
5 - 8 |
|---|---|
| Heat Zones |
1 - 8 |
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17 |
| Plant Type | Perennials |
| Plant Family | Polygonaceae |
| Genus | Persicaria |
| Common names | Knotweed |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Summer (Mid, Late) Fall |
| Height |
6" - 1' (15cm - 30cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
18" - 24" (50cm - 60cm) |
| Maintenance | Low |
| Water Needs | Average |
| Soil Type | Chalk, Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Plant of Merit, Showy, Semi-Evergreen |
| Tolerance | Drought, Deer |
| Garden Uses | Banks And Slopes, Beds And Borders, Edging, Ground Covers, Underplanting Roses And Shrubs |
| Garden Styles | Informal and Cottage, Gravel and Rock Garden, Traditional Garden, City and Courtyard |
How many Persicaria affinis ‘Superba’ (Lesser Knotweed) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Persicaria affinis ‘Superba’ (Lesser Knotweed) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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