By Myouse
Pembrokeshire,
United Kingdom 
last year I had a bumper crop of summer fruiting raspberries but this year not one bud let alone flower.
what could be the reason?
24 May, 2018
its been an unpleasantly long and cold winter/spring. there may still be time for buds too form. did you prune then and if so when?
24 May, 2018