Persicaria campanulata
lesser knotweed
A semi-evergreen or herbaceous perennial with attractively veined, ovate leaves which are whitish, later pale brown, beneath, and short panicles of small, bell-shaped, pale pink flowers
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Pink | Green Brown | ||
| Autumn | Pink | Green Brown | ||
| Winter | Green Brown |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or North–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Polygonaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Genus
A genus of annual or clump-forming perennial plants with terminal or axillary inflorescences carried on upright stems. Flowers are small, pale-coloured usually white or pink. Seeds are borne in achenes
- Name status
Correct
- Plant range
- Himalaya
How to grow
Cultivation
Grow in any moist soil in full sun or partial shade
Propagation
Propagate by division in spring or autumn
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut back after flowering
Pests
Generally pest-free
Diseases
Generally disease-free
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