You can cut the growth off, dig up the root, put into the new spot. It divides well too - chop into pieces with a sharp shovel. New growth from the root balls will emerge in the spring

But in general, in temperate climates large plants transplant better when they are dormant. And as close to winter as we are now, I would wait until a couple of weeks after it had lost all of its foliage.

Unless it is the Clematis armandii which is evergreen, then it doesn't matter so much.

When transplanting into pots or the ground;

Always prep the hole or soil in pot by filling it with water and letting it soak out (in pots it's best to immerse the pot in water for ten minutes before adding soil) then just before placing the plant in the soil, fill the hole with water and set the roots into the water and loosen a bit, then start covering with soil. Once soil is in place, water again... until the soil is wet but not waterlogged. Let it sit, water the next day. Sounds like a lot but it's a tried and true method, for me, and helps avoid or reduce root distress, they should look great within 24 - 48 hours if not sooner.

Good luck!

Thanks for the ideas and suggestions. This thing is probably due for a division.

They spread like crazy whether you want them to or not. They’re considered invasive.

I guess I'll have to rethink my strategy and figure out what the other one I have is.

Thanks

I had clematis on an obelisk, but a bully honeysuckle pushed it out to a nearby raised bed. The clematis rooted in the raised bed and thus I had a number of clematis starts this spring. Mine are a large purple flower.

I'm thinking you could do something similar with what you cut before you relocate it. Clematis roots easily and you don't have to do much: just throw the vines in an empty raised bed or whatever you have, cover it with soil, leaving the leaves out. Water it regularly and you'll have many rooted plants to choose from for your garden next year.

I gave away about a dozen! People were so happy to get them. I transplanted a number of them and they are vining around bamboo teepees in my container garden.