I stuck some about a month ago and they are rooted. I would think that in your zone, any time would work - keeping the medium moist, but not wet, will be a key factor. Place them in a shaded area. Come back and let us know of your success.
thanks for the help! because of the blooms, i might just wait until spring. but if i can get a sucker then i might be able to try it.
my neighbor's bush did drop everything, only being able to flower this last winter - like you said dyzzypyxxy.