Yes, prune them now, it wont do them any harm if it stays cold, Derek.

Great, thanks for replying Derek- much appreciated.

I did my buddleia weeks ago and it is sitting quietly waiting for a bit of warmth.

Thanks. Will brave the cold tomorrow to tidy them all up.

No, it's too cold!

The sap at the cut end will probably freeze at night and cause some die-back. It is also very prone to fungus later on as it is too cold for adequate callous formation.

generalising wate till theres know more hard frosts .

Its very cold here in West Wales and our visitors from Essex told us its much colder there, so I'd be inclined to wait a bit. I have done my buddleja but its in one of the few slightly more sheltered spots Another year you might cut back the lavenders after flowering.

i just did my dogwood on the strength of the fact i believe my own awnwer as far as dog wood is concerned as its well hard lol .

i would agree with steragram if your not sure what your doing .some things you can be brutal and some plants just shrug it off . look t good old grass chopping the crap out of it in the summer every month with a lawn mower . even burning . some plants/trees must be quit the opposit . i know a few people who grow some of the weaker/more tropical bananas plants and dig them up every winter .