Q.What Has Happened To My Clematis Roots?
Hi, I have many, many clematis in pots but have lost around 12 (!) so far this spring (in Australia). As you will know, clematis have very thick, strong roots – but I’ve emptied the pots where the plants have not come out of dormancy, and they look like this (see photos). All the fleshy parts of the roots have gone, leaving only the thin inner tendrils. Any idea what could have caused this? I had a problem with root scale six months ago which I’ve controlled by repotting, removing all soil and treating with diatomaceous earth, but could they have done this much damage to the remaining clematis, or is it more likely to be slugs (or something else)? Hope you can help! Thanks.

Certified GKH Gardening Expert
It just sounds like they have gone through so much stress that they have not had a chance to grow back any roots lost! You may have to care for them inside until they are healthy enough to move outside.
This article will help you to care for them in container:
https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis-in-pots.htm