Is This An Invasive Bamboo?

Question

I am hoping this is a bamboo and not some kind of Knotweed, could you advise please, the picture is a sample, it is growing to about 5 foot in a couple of days and is hollow. New shoots seem to appear every couple of days

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Answer 1

The leaves on bamboo are more linear and the leaves on Japanese knotweed are more triangular. You don't want either one growing in your yard (or your concrete) so I suggest getting rid of this as soon as possible. Here is more:

https://extension.unh.edu/blog/invasive-spotlight-japanese-knotweed

https://www.gardeningknowhow.com/ornamental/foliage/bamboo/kill-bamboo.htm