In message , Janet Baraclough
writes
Mine also flowered on and off all through every winter however cold
(in various parts of Scotland, all colder than Gatwick) .Whatever is
ailing Klara's, it's not an excess of cold. Maybe climate warming could
be confusing it :-)

It's certainly confusing me - I didn't know global warming would be so
chilly! But maybe I'm doing something wrong with the tree: do you feed
yours, and with what and when? Or mulch it?

--
Klara, Gatwick basin