Looking for Tough Perennial
I am looking for ideas for a tough plant to put in a small bed on the south side of my house. It is "partly sunny", probably gets 3-4 hours of direct light a day. Ideally I would like something fairly low that flowers and spreads. I have tulips and daffodils in this bed and would like something that would fill in and help cover up their mess when they die back. We have no rain gutters on the back of the house yet, so something that wouldn't get beaten up too badly when it rains. And... this particular spot gets a lot of sun in the winter and has a tendency to thaw and refreeze. My bulbs start sprouting in February!
Any ideas on what could survive in this location?