Is there a type of ground cover that stays green for most of the year in Indianapolis?

I was hoping to plant something in a bed that will allow perennials (tulips, daffodils, hyacinth) to bloom through it.

Is there a type of ground cover that stays green for most of the year in Indianapolis?
Maryn's right - great choice- for variety you could do clumps of English ivy (green all year once established-) and vinca, which flowers in spring, coming in white and purple varieties. This is what I have on my front in Chicago. I also have clusters of tulips, daffodils (spring), and three hydrangeas (summer) and clusters of autumn joy sedum for fall color. - no problem, the ground cover roots are shallow. You need to watch the water in the intense heat though.
Reply:Consider pachysandra. We had it at our old house, in a more severe climate than Indianapolis, and it was green all year, once you got the snow off it.

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