Sunrise Main Crop potatoes

Does anyone know if Sunrise potatoes flower? My first earlies didn't flower and just had tiny little tufty bits and the Sunrise is looking the same. My second earlies are in flower and just starting to die off.  The Sunrise plants are all very tall too and starting to fall over so I am not sure how far on they are. I wasn't expecting to harvest until around July.

Well it might do, but - sods law - the flipping database is not accessible at the moment due to some maintenance work or something! Just my luck but thanks anyway!