yes you can ..lay them flat andlet the cuttings dry .. save them to be potted in spring..write on each cutting with a marks-alot for easy idenification..just dont water or store in place that may freeze

Keep in mind that when you prune, any new growth that comes in will not likely bloom the next growing season.

Also, any new plants started from cuttings are not likely to bloom their first growing season. They may have latent buds that develop, but don't be surprised if they fall off due to an underdeveloped root system.

cuttings will still most likely bloom long before seeds starts do tho