I have to have several fence panels replaced. I have a clematis
cirrhosa, in full flower, on one panel, which I can detach from the
fence. It is growing in a pot, but has now rooted down into the
ground, and the pot is immovable.
Can I cut through the root below the pot? Would it survive? I would
then replant it in the soil. I don't know how much root is in the pot
and how much is below.

I could smash the pot (shame) and try to dig up some roots. Would
that give it more chance?

Afdvice please. It's doing rather well now. Has been there for about
5 years but restricted growth until it rooted out of the pot.

Pam in Bristol