Persicaria affinis 'Donald Lowndes'
knotweed 'Donald Lowndes'
A mat-forming, partially evergreen perennial to 20cm in height, with dark green, narrowly elliptic leaves which turn bronze in the autumn. Upright spikes of small pink flowers appear from summer to autumn, turning orange-brown as they age
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Pink | Green | ||
| Autumn | Pink Orange Brown | Green Bronze | ||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Polygonaceae
- Native to GB / Ireland
- No
- Foliage
- Semi evergreen
- Habit
- Matforming
- Genus
A genus of herbaceous, rhizomatous perennials with erect, unbranched stems, bearing short terminal spikes of small, white or pink, bell-shaped flowers
- Name status
Accepted
How to grow
Cultivation
Easy to grow in any moist soil in full sun or partial shade See https://www.rhs.org.uk/plants/trials-awards for further information about RHS plant trials and awards
Propagation
Propagate by division in spring or autumn
Suggested planting locations and garden types
- City and courtyard gardens
- Gravel garden
- Patio and container plants
- Coastal
- Cottage and informal garden
- Rock garden
- Ground cover
- Banks and slopes
- Flower borders and beds
- Garden edging
Pruning
Deadhead faded spikes
Pests
Generally pest-free
Diseases
Generally disease-free
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