Any ideas as to what is wrong with my Clematis flower
It probably got hit by one of the recent frosts (the dark colouring on some of the leaves may also be a sign of that) or the bud was possibly nibbled by something. However, I wouldn't worry as the other buds look fine and should develop normally.
A trowel in the hand is worth a thousand lost under a bush.
Your clematis is looking fine to me!
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