growing kiwis vertically up 20' black locust stump

Hi, does anyone here have experience growing a hardy kiwi vertically? I planted it self-fertile "Prolific" hardy kiwi near a ~20' black locust stump last fall hoping it would climb up the stump and engulf it, but it hasn't been doing so. (I don't mind climbing a ladder to get the fruits.) The tips of the vines just wrap around themselves and wave in the wind. Photos coming soon.

they need something a bit thinner to twine around for climbing. in your situation i might try attaching dangling ropes higher up the locust, or attaching smaller branches somehow to help them climb. i have 1x2 around one edge of my porch roof (with little 1” posts holding it out so the vines can get around it) so the kiwis have something they can attach to.

Thanks Greg, that's a good idea, that I think I might try. Still on the fence re: vertical growing vs. just building a trellis. TBD.