Superba Fleece Flower, Knotweed

Superba Fleece Flower, Knotweed

Persicaria bistorta 'Superba'

This spreading perennial bears pink flowers in summer fall.

  • Pink flowers are produced in summer fall, providing colour through the bloom season.
  • Spreading clump, reaching 60 cm at maturity; divide every three to four years to maintain vigour.
  • Best in full sun to partial shade to full shade with moist, well-drained soil.
Size
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Plant Characteristics

Sunlight
Full sun, Partial shade, Shade
Soil Moisture
Well-drained, Moist, Average
Hardiness Zone
4 – 4
Mature Height (meters)
0.5 – 0.6
Mature Spread (meters)
0.6 – 0.7
Growth Rate
Medium
Flower Colour
Pink
Foliage Colour
Green
Bloom Time
SummerFall
Habit
Spreading
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Landscape Uses
Border
Growing & Maintenance Tips
Plant in full sun in a moisture retentive (soil should be consistently moist), organically rich soil. Use for edging border fronts, in rock gardens or as a ground cover. It can also be grown in light shade and along a stream or pond bank. Plants are easily divided in early spring.

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