Shade and drought tolerant - plus summer color?
After recent landscaping work, our city front yard has a large new space for color. The down side is that a lovely maple sucks up all the summer moisture. We have tulip bulbs for spring and last summer I put annuals over them. Although impatiens flourished elsewhere in our shady garden, they looked pathetic in this space last summer, despite my loyal watering. They were also difficult to plant because of the tree's roots. Suggestions for a colorful PERENNIAL that is drought- and shade-tolerant?