Periwinkle

Does Periwinkle flower on old growth or new growth, Please

 

Hopefully someone will give you a definitive answer, but, I seem to recall that mine would flower on new growth

 

Ditto @"M". I have both the ordinary and variegated Vinca. From memory if I've given them a hair cut in the early Spring it delays flowering.To be safe Jiffy I'd be inclined to delay pruning if that's what you want to do until say end of April/after yours have flowered but I may well be wrong on this.

 

Thank you M and Silu, i just couldn't remember