Bush wrote:

Well, the subject says it all really.
My Saturday in the garden reveals that my new Brown Turkey
trained against a south facing wall has lost all its leaves
this week. Yes, there were a couple of light frosts in the week...
...but is this normal behaviour for a Brown Turkey ?

They do seem to drop all there leaves suddenly, in one go. Not just in
response to autum but also overheating or drought. Our did this back in
June and had a new set of leaves by August.
--
Larry Stoter