What grass would look great in this flower bed?
This is the bed where I put wildflowers or wildflower-ish flowers -- I was originally going for a roadside look rather than a native prairie or meadow because I like the mix of different kinds of plants.
I've been chicken so far to put in any grasses (although clearly that would make what I have look more like what you see on the side of the road here in Minnesota) -- I spend so much time pulling lawn grass OUT of my various flowerbeds!
Are there ornamental grasses that would not seed themselves or spread aggressively? Should I stick with grasses that would not be perennial in zone 4? Can you suggest grasses that would suit the colors and look of this bed?
The bed does get 6 hours of sun but is shaded by a very tall elm tree in the middle of the day.