I have strong glyphosate handy, any runner of passionflower that I see will be allowed to grow for a few weeks and then it will be zapped, it will at that stage be able to send the glyphosate back along the runner. Right now the 6" soil gap between wall and barrier is just soil with a few germinated weeds that I will hoe soon. . I am not going to put a medley of plants on the ground next year, I need to be able to see what springs up. Luckily the passionflower is distinctive
cuso4 will kill the root tips and will be put into the soil strip from time to time
Another welcoming into Soop's kitchen for those who care to share...