I have a Ceanothus "Concha".
It bloomed magnificantly this year.
Now I am paying the price as it is shedding all its leaves.
It is now more yellow/brown than green.
Not enough water or too much?
Or is there another problem
The position is sunny and it gets the sun nearly all day long.

I had one that went like that, I dont know what sort it was as it was in
the garden of an old house that we bought I would think it was pretty
old by the size of the trunk. Against advice I hard pruned it and for
the last two years it has been brilliant, maybe I was lucky.

kate