Persicaria 'Silver Dragon'
knotweed 'Silver Dragon'
A fast-growing, deciduous, herbaceous perennial to 1.1m producing a mound of stems. The foliage is highly ornamental and heart shaped, with a pale silver 'V' mark over a grey green base colour. Inside the 'V', the colour is pale purple-bronze with a darker bronze margin to the leaf. Provides good orange colour in autumn. Young foliage is very dramatic and contrasts well with open sprays of white flowers from summer to autumn. Suitable for the middle of a flower border
Buy this plant
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Purple Bronze | |||
|---|---|---|---|---|
| Summer | White | Green Purple Bronze | ||
| Autumn | Orange | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Polygonaceae
- Native to GB / Ireland
- 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
Grows in any well-drained soil, in full sun to partial shade
Propagation
Propagate by division in spring or autumn
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Flower borders and beds
Pruning
Cut back old, flowered stems to the ground in autumn
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.