Bistorta vacciniifolia (syn. Persicaria)

Rock Knotweed

$16.00

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Rock Knotweed. A choice mounding groundcover we got at one of the best alpine plant nurseries on the planet, Aberconwy Nursery in Wales. Dense trailing and mounding red stems lavishly adorned with Aug-Sept spires of pink flowers and glossily petite deciduous leaves. Lovely spiller in containers. Probably hardier than the zone 7b we know to be true.

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Hardiness Zones

  • Zone 7b (5 °F)
  • Zone 8a (10 °F)
  • Zone 8b (15 °F)

Bloom Time

  • Summer
  • Autumn

Water Needs

  • Moderate
  • Perennial / Bulb
  • Groundcover
  • Full Sun

$16.00