Eventual height & spread
Bistorta affinis 'Superba'
East Indian knotweed 'Superba' (syn. Persicaria affinis 'Superba')
- 9cm pot
- £9.99
- In stock (shipped within 2-3 working days)
- 3 × 9cm pots
- £22.99 £7.66 each
- In stock (shipped within 2-3 working days)
- 2 litre pot
- £18.99
- In stock (shipped within 2-3 working days)
- 3 × 2 litre pots
- £49.99 £16.66 each
- In stock (shipped within 2-3 working days)
Delivery options
- Standard £5.99
- Position: full sun or partial shade
- Soil: any moist soil
- Rate of growth: fast
- Flowering period: June to October
- Hardiness: fully hardy
- Garden care: Incorporate a generous amount of composted organic matter or well-rotted manure into the backfill during planting. Once established, lift and divide congested clumps in spring or autumn. Cut back after it has finished flowering, or wait until late winter or early spring. Apply a mulch of composted organic matter every year.
'Superba' is a vigorous, mat-forming semi-evergreen perennial whose leaves create a carpet-like effect beneath the pink flowers, which turn to crimson as they mature. Not to be confused with the similarly named Bistorta officinalis 'Superba', East Indian knotweed blooms during the summer and boasts excellent autumn foliage colour.
