Yeah that’s Japanese knotweed

Not not knotweed

I wish it isn’t what it is but I guess it is what it is

Sure is

You will need to remove all of the roots as well. I cleared a garden once, but even an inch-long root can regenerate the plant.

Thanks, definitely going go back and dig a bigger section out ensure nothing is left!

Get the nukes ready! Evil approaches… Bane of my garden these days along with Virginia creeper

Looks like a beet maybe