We grow wine grapes, and I always wanted to try to make dolmadas (love those) with the leaves. I don't know what variety, but I've read you need the young fresh leaves, not the old raggedy ones. Steaming or boiling makes the leaves soft enough to roll up. Of my vines Perlette (seedless white) has huge leaves, as does Tempranillo (wine red). Cabernet leaves are sort of small with too many fingers. Think of figs. Many varieties, like Ronde de bordeaux have too many fingers, but Alma has a nice smooth leaf.
Grapes grow easily in containers. To find a good variety that will grow well in your climate, spend a day here at the National Grape Registery. Accept the entry, then click on varieties. Each grape has it's country of origin, so if you find any originating in a climate like yours, you will have success. It will state where the grape is available for purchase, and UC Davis offers cuttings also. Once you find some you think would be good where you are, google search each one, and you will see photos of the leaves and grapes.
If your climate is humid, people spray to prevent powdery mildew, which will ruin a crop. They also spray for other diseases and pests. They care more about the crop than the leaves, but you will be snatching early green leaves before pests can get to them, right?
Most of the people in the Mediterranean grow grapes for wine. They mostly all have figs and grapes. Not so sure about the wild grapes, but we've got them here too, so make sure there is more palm than fingers on the variety you choose.
Have fun!
Suzi