Repotting a much loved Clematis!!

I have a pot bound Clematis that is over 10 years old in a lovely terracotta pot. The trouble is that it is stuck solid and I can't get it out of the pot. For sentimental reasons I don't want to break the pot or damage the plant! Any ideas would be welcome.

 

Hi I would leave for now and repot in the autumn and use a slow running hose to wash the soil out of the pot plus this wont damage the pot or plant it will easily come out .

But like I said dont do it yet Autumn (late october early November)

ps Welcome to GC

Spruce

 

Thank you very much, will do!