Japanese Knotweed - Fallopia japonica

  • A striking semi-woody, perennial with bambo like stems up to 3m high
  • Introduced as ornamental
  • Young shoots (up to 6-8cm) can be used like rhubarb
  • Other Fallopia species in NB are either twining/trailing or do not have squarish leaf bases

The Problem

  • Excludes native species and is of little value to wildlife
  • In optimal conditions it can grow 8cm/day
  • Extensive and deep rhizomes make it extremely diffcult to control, the plant can regenerate from a rhizome piece as small as 5 grams

Distribution

  • Very adaptable but usually found in moister areas from full sun to medium shade
  • Found thoughout Canada and the USA except in the very driest conditions