Japanese Knotweed - an invasive plant in the Hudson Valley NY
Japanese Knotweed (Fallopia japonica) - an invasive perennial plant in the Hudson Valley NY. Click this link for advice on how to remove Japanese Knotweed. https://hudsonvalleygardens.us/2014/06/13/japanese-knotweed-an-invasive-plant-how-to-remove-it/ This plant spreads rapidly via underground roots called rhizomes and via seed. Any fragment of rhizome that is left in the soil can potentially grow into a plant. Stems can grow to about 5' high. It was introduced to the US as an ornamental garden plant and is a problem in many countries world-wide. The shoots can grow in many soil types, sun or part shade. The roots can grow through black top at the edge of roads.
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