I especially like the 'Black Prince' cultivar which comes true from seed but I was given a few cutting in the first place. Love the very deep red flowers and almost red/black foliage. Seed later, if anyone wants it.
Maggi, Asarina procumbens does indeed grow to 1.5 metres and I could show you if Clematis akebioides (damned thing) hadn't grown all over it. I get occasional seedlings on the Asarina which climb up wire or shadecloth fences. They are very neat about it, lying flat and with a very "arranged" look. Will take some pics in the summer.

Sorry, I misread there. Yes, the Asarina is prostrate if there's nothing to climb on BUT it climbes to 1.5 metres if there IS something. Will scramble though a rhodo or anything else too.