Persicaria virginiana var. filiformis 'Lance Corporal'
knotweed 'Lance Corporal'
A tough, deciduous, herbaceous perennial growing to 60cm (2ft) high and across, with large, mid-green heart-shaped leaves, each baring a contrasting, dark purple 'V' or chevron on the upper surface. In late summer pinkish-red flowers appear on long, slender stems which are carried well above the foliage
Size
Ultimate height
0.5–1 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 | |||
|---|---|---|---|---|
| Summer | Pink Red | Green Purple | ||
| Autumn | Green Purple | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical 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 well in moist, but well-drained soil in 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 but may be susceptible to slugs and snails
Diseases
Generally disease-free
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