Plants for full sun in summer & full shade in spring/fall/winter
I have a 4' x 8' area in the north side of house that is full shade most of the year, but receives blazing sun all day long during the summer (from mid-May to mid-August). Does anyone have suggestions for low-growing (up to 2 feet) and low maintenance perennials, shrubs or ground covers for Zone 5? Vinca minor seems to be doing well in the nearby area, but I would like something different. The area becomes very dry in summer but wet otherwise. So far I have tried hosta 'gold standard' (my research suggested it is sun-tolerant), tulip, knockout rose, salvia 'may night', and ajuga 'burgundy glow', but none of them were happy there.