it is very easy to do, just pull a piece off and put in a pot of water for a few days and you will see roots growing , or I have even just put it straight in the ground in damp weather.
Don't do it!! You'll have a garden of it within a couple of years!! I spend weekends cutting back the stuff. That's just a piece of advice.
Anytime of year will do, no technique needed.... ;-)
Thanks for that- sounds very easy.....The cuttings not for me, but I am quite happy to have good ground cover around the perimeters of my garden rather than weeds....