Hi therefore, Given the current weather conditions, now would be a perfect time to take cuttings. In a deep tray or pot of 50/50 sharp sand and medium sieved peat mixed, take the top 6" of the current years growth and remove the lower leaves, leaving the top leaves -which should be reduced by half with a sharp pair of scissors (to reduce transpiration) You may use rooting powder if you have it but it is not essential. insert cuttings to about halfway and thoroughly water and place out of the sun either in a home made polythene tent or ideally on some bottom heat if you have one of those electric propagators ( but not essential) As I say do this now, avoiding leaf-fall or, alternatively leave until after leaf fall and take full hardwood cuttings, same as before but take slightly longer cuttings, inserting them 3/4 of the cutting length into a trench outside filled with the 50/50 peat and grit mix, leave until the early spring when they should then be rooted.
Best of luck,
Kind regards, Lannerman.