It’s a beautiful blue berry–
–but what is it?
Leave me a guess in the comments and I’ll check back later with your answer!
We’ve posted this plant before, but not shown its fall berry. Here’s a photo clue with the leaves.
Mile-a-Minute Weed, Persicaria perfoliata, is an invasive plant that grows like the name suggests–very quickly. It also is sometimes called tearthumb or Asiatic Tearthumb, which is a good name with those little thorns. A post we made a year ago in the summer contains links to learn more, but you should be wary if you see this pretty berry and its triangular leaf. And you should pull it before it looks like this:
Or this, covering your native plants like it has on our nearby golf course.
It’s sad, because under that mess were some nice blackberry bushes.