Answer: A pretty ground cover for shade is dead nettle (Lamium), which is available in a variety of different leaf colors. Houttuynia is another suggestion. The flowers are not especially breathtaking, but the foliage colors are certainly attractive.
Periwinkle (Vinca minor) and Purpleleaf Wintercreeper (Euonymus fortunei 'Colorata') are two of my favorites. Neither is aggressive and they stay green in winter. Periwinkle has pretty blue flowers in May and June.
Or, you might consider planting annuals in the spot. Impatiens, Lobelia, Primroses and Pansies all provide bright splashes of color in their own seasons.
Best wishes with your garden!
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