Greg, LOL "the peppermint has escaped! This is not a drill, I repeat, this is NOT a drill!"
I wish my lemon balm WAS invasive!
One of my favorite plants but it one that survives here but never thrives. Mine always has leaves with black or brown edges and needs to be protected from full sun and wind PLUS regular shots of seaweed and fish emulsion just to keep it from completely dying back. Gr!