I guess you mean Eccremocarpus scaber, the Chilean glory vine. This isn't hardy so needs protection from frost in the winter. If it isn't flowering yet this year I wouldn't despair after the extremely cold winter. It will flower some time between now and autumn if it has survived the cold and is still alive. Many plants which normally come into flower and fruit are extremely late this year.

thank you bertiefox it was the solanum crispum(glasnevin) i was refering to or chilean potato vine.if you can shed any light on this plant i would be most grateful.