This plant is growing in my yard. It sent out very long spikes of the flowers...

Asked September 17, 2013, 12:07 PM EDT

This plant is growing in my yard. It sent out very long spikes of the flowers you see in the picture. I would like to know what it is and if it is invasive. It seems to have rotated in this image but the original is correct.

Prince George's County Maryland plant identification native plants tovara virginiana persicaria virginiana

1 Response

This is a native plant, Tovara virginiana or Persicaria virginiana. Common name is Virginia knotweed. It's a good native plant because deer don't seem to eat it, so it helps form the forest understory. Early in the growing season, the leaves are attractivee with chevron markings. Later, they get the flower stalks. What you're seeing now are the seeds forming on the stalks.

This is a perennial plant and can be a nuisance because it seeds itself around and is hard to pull up. We wouldn't recommend it in ornamental beds, but if you have a wooded or wild area, it is a good addition.

ECN