Beginner Gardening: Houttuynia Cordata or CHAMELION PLANT need to kill, 4 by pirl

pirl wrote:
#1 - covered in plastic, heavy duty, daylilies in pots. Notice that I did extend the plastic into the lawn.
#2 - now it was November and after clearing out roots again we put down black plastic in the second area.
#3 - I was shocked to see roots when I peeled back the plastic to check the progress.
#4 - Septemer, 2012 - looking good!
#5 - Also looking good on the right!

There is a limit to patience so every new piece I find gets the poison immediately. I'm almost 72 and not about to continue this madness of trying to avoid the only answer I could find to the Houttuynia cordata 'Chameleon' problem for the rest of my gardening life. I'd prefer anything organic over poison but it ended up being the only sane answer.