Ceanothus don't make a good rootball, in fact, none at all. As a result, when they are lifted, the soil falls off the rots and the plants usually die. If you can lift the plant with a rootball intact there's a chance it'll survive, but it's worse than touch and go! Phil

they're not long lived shrubs either, usual lifespan about ten years, sometimes 15,if you're lucky. Probably best to plan on buying a new one to plant in Spring.

If I were to try, I'd do it in the spring too. Quite a few were lost over winter last.

They can be propagated from cuttings in summer, so if you can wait, take some next year and have a free replacement! Once you start to cut them back it's the beginning of the end, too. Next year you cut off more (brown, dead wood) then more after that....