Persicaria microcephala 'Silver Brown'
knotweed 'Silver Brown'
A vigorous clump-forming deciduous perennial with attractive silvery-green heart-shaped foliage with a dark brownish-red centre and margins. Upright spikes of pinkish-white flowers appear from late summer through until the autumn. This variety is best suited to larger gardens
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver Red Brown | |||
|---|---|---|---|---|
| Summer | Pink White | Green Grey Silver Red Brown | ||
| Autumn | Pink White | Green Grey Silver Red Brown | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Polygonaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Persicaria can be annuals, herbaceous or evergreen perennials or sub-shrubs with simple leaves and small bell-shaped white or pink flowers in long-lasting spikes or panicles
- Name status
Accepted
How to grow
Cultivation
Grow in moisture-retentive but well-drained 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
No pruning required
Pests
Generally pest-free but may be susceptible to slugs and snails
Diseases
Generally disease-free
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