48° here
Was reading up on how to eliminate the bind weed and they say to cut it to the ground to starve out the roots or it just keeps spreading.
When we first moved in there was a patch of decorative plant in the back yard. About 3 - 4 foot tall a slight reddish color to the leaves. We identified it as Japanese knotweed, and it was very invasive into the lawn via the root system. Kept cutting it back to the ground to starve out the root system, took about three years.
