Mine is in the middle of a partly-mostly shady bed, that is growing bulbs, Columbine, Dicentra spectablis, Hosta, and forget-me-nots and sweet alyssum around the edges.

The Rozanne seems to emerge on the later side, and then it sort of wends its way amongst the perennials. It looks pretty!

My Rozanne is in a bed in front of our garden shed where it gets morning sun. It's in front of several clematis that are growing up the front of the shed and behind an arbor with clematis and Blue Moon wisteria. I usually plant taller annuals in front of/behind the Rozanne because it does travel gently through the taller plants.

I would go with colors and plant forms that you like. I've also planted Rozanne with taller perennials like phlox and dianthus. It's a great "mixer."

Molie

These are some other perennials I like:
Day lily -happy returns
Blue ice Amsonia
Sedum
Aruncus - dwarf
Coreopsis
Heuchera
Leucanthemum

Any of these work better with Rozanne than others? Thanks.