I cut them back a bit and use the bits for cuttings as an insurance policy. Some go into a cool unheated room with a north-facing window and the ones outside in pots which are quite mature now and in gritty compost are put in a place shielded from rain. I take a cutting or two for indoors but don't otherwise cut them back at all. It rarely gets below 3 centigrade here and they usually survive.
Burnham: Is the Media Tempting Fate by Jumping the Gun?
Thinking about fostering – confused about allowance & agencies



