Hearty shrubs/perennials for Wisconsin?

Question:We're planning on landscaping next year and need some ideas for shrubs or plants that can stand full to partial sun and grow up through a bed of medium landscaping rocks. We'd love some with bright flowers but anything that is hearty and easy would also do. Suggestions?

Answers:
these are some plants that I have in my yard and are doing very well.. though with your rocks I would leave a big enough area uncovered around the plants...perennials would have a hard time pushing through the rocks in the spring.
variegated weigalia bush flowers all summer long
lilac
hostas (I have the giant variety and they handle sun quite well)
shasta daisies
russian sage
lillies
columbine
prim roses
black-eyed susans
wild geranium
hardy mums (for fall color)
astible
bleeding heart
to name a few.
you might want to look at http://www.springhillnursery.com... for some ideas you are in zone 5 then go to menards they have a nice deal on them now. good sized plants for $4.29 each for perennials. if you are near Elkhorn wisconsin you could also check out Prairie Tree landscaping they have a bunch of really nice shrubs of all varieties. hope this helps! have fun!