If it is kolkwitzia amabilis, semi- ripe cuttings - which will not be available for a few months yet. I assume you have just taken the cuttings, so I suspect they are softwood. These will require special care - mist etc.. Wait until early July to take cuttings, remove the soft tips and cover teh cuttings with a freezer bag or something similar.
Alternatively, have a look at the base and see if you can see any suckers. This is a good time to lift one, with roots and soil, pot up and keep in a sheltered spot.