So, there I was , with an armful of prunings and what did I do ? What Monty Don suggested, that's what ! He said to just push the prunings into the ground in the likelihood that they will root. Job jobbed !
I still had a (smaller) armful so I potted up smaller prunings in pots of about 8 and put them in the greenhouse, to take their chance. I potted them up in general potting compost, dipping them in Hormone rooting gel first. If I am unsure of what to do, I always use my mum's mantra, which is "They have 2 chances - live or die, so let them take it !" I won't have lost anything if they fail to root so it is always worth a try.
I still had an (even smaller) armful of prunings left, so I put them all in a vase in the house and they look so lovely. So there was nothing left from my pruning to go on the compost heap!