moving established plants
I foolishly planted a container of black eyed susan last year in a tiny garden patch, not realizing how big they get and that they spread. Would like to move them to an area where there's much more room for them, and plant in their place some mums or other smaller perennial. It's fall now, so the susan's flowers are gone, but the leaves are still green. Is it safe to dig them up now and replant elsewhere? Will probalby (hopefully) be a month before we get below freezing temps.
In that same small patch are also some established evergreen bushes (both needled and flat oval-leaf types--sorry don't know names), that I'd also like to move so that I can plant something that flowers in their place. Any advice about when/how to dig them up?