Hello Julie, My first Grape vine was 'Flame' which I planted outside the greenhouse and fed the vines into the greenhouse. The first year it survived the winter but in both 2009/2010 the frost cut it back to the roots. Last year I re-planted it on a west facing wall along with Boscoop Glory and it looks like it's new position is better than the cold greenhouse. 2009/2010 were particularly bad winters though, good luck.
Spechley red and Purpurea are tough 'ornamental' vines and we've made some very good wine with them..lovely Autumn colour too.