When I applied the 100% vinegar, the leaves wilted and died off but several days there were new shoots. Prisim led me to a discussion on this problem and one of the notations was that she'd dug by a rhizome the size of a football. We had rain all day yesterday and today we has a gully washer late this afternoon to really saturate the soil. I will water again in the a.m. and then try the boiling water trick.
My "Lucy" as sick and had to take her to the sewing machine hospital (an hour away), therefore unable to do the water trick today.
The plants in the second flower bed are blooming and they are a magenta color. Almost red with a pink tinge. They too will be killed or my daughter will take them to her rural setting.