Good Morning All,
Bind weed as i know it is wild morning glory there are about four other plants that creat the same challanges. The wild Morning Glory is a soil indcator and works as a sub soiler breaking through hard pans. I find it only were it needs to be and controll by not letting it set seed. Seeing it as a friend may help a bit.
Ps the roots go down over 10 feet
I don't think there is hardpan, per se, in either location where I have the stuff growing, but I like your philosophy regarding it... very "Fukuoka". However, if I get frustrated enough, I may try Irene's suggestion about training it up a stake to isolate it for special treatment.
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