
In GA mandevilla are treated as anual bedding plants. It's wastefull, but true. Do you have a bright sunny location for it? I suggest that you bring it in and hope for the best.
Try this link for general mandevilla information:
http://search.gardenweb.com/search/nph-ind...term=mandevilla This link deals specifically with propagating mandavilla:
http://forums.gardenweb.com/forums/load/pr...0801563254.htmlIn the Autumn, I dig the mandevilla vine up and bring it indoors for the winter. It does fine.... I don't have unlimited room indoors, I really don't need more than one! By not cutting it back, it continues to bloom through the winter.