I know it looks like a herb of some sort, but is it?
I think it's basil. If you pinch out the flower head it should bush out.
Reminds me of pig weed.
Here is a link that might be useful: common name that's often confusing
Amaranthus spinosus (aka weed)
Yup...pigweed.....remove it before it goes to seed....otherwise you will have hundreds to weed next year
Oh so it's a weed , shame it looks cute :) I will kill it now . Thanks a lot