We have some brush killer we could use but I am reluctant Is your woody weed killer safe for the water table and surrounding plants? It doesn't really matter in this case because we had to stomp all over the peonies and creeping phlox and bulbs to get this stuff out. I have to replant the entire area anyway but how long would it take for a weed killer to kill the weed and still allow new plantings to survive. I know I didn't get it all