B. galpinii is more of an arching shrub, and not really a vine. In the ground it will take off and actually become a fairly large multi-stemmed shrub or small tree. I was not really impressed with mine until I put it in the ground and let it go - then it went crazy and bloomed like mad! I'm in zone 9b, and it did fine for me, not sure how it'd do in zone 9a.
