The first flush of flowers on my pinks are great ,then on the second flush most of the buds are hollow, why is this I cannot see any bugs, could it be they are too dry?
Just remove those - it's quite common. Keep them well fed and watered, but make sure the drainage is really sharp. I frequently get the same issue and that's what I do with mine
The drainage is very sharp
That's good Roy - they don't like wet feet - a bit like me!
I think it's just one of those things- it certainly doesn't seem to affect the plants long term