Fallopia sachalinensis
Plants
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About
Reynoutria sachalinensis, the giant knotweed or Sakhalin knotweed, is a species of Fallopia native to northeastern Asia in northern Japan and the far east of Russia.
Summary from Wikipedia
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Growing details and traits for Fallopia sachalinensis in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.