Posted: 13/06/2015 at 23:44
I think you may have overfed them. you have forced them to grow quicker than they wanted too. I have never, ever fed my fuchsias that are in the ground, only mulched in the autumn. Pick of the damaged buds, i am sure it will be ok, and stop feeding.
I only feed ones in pots, then only once a fortnight, later in the summer.