We have what we are pretty sure is a Ceanothus in our garden. We moved here 7 years ago and it was quite well established then. It has always been well until recently when it appears to have died very suddenly. It flowers a magnificent blue/purple in Spring including this year. I have attached 2 photos, 1 from May 2020 and one taken today, 12/9/21. I did prune it late last year. Can anyone say of its dead or if I was to prune it right back would it come back? Any help much appreciated.