My Manhattan garden is 50' x 15' between my building and a high ivy covered wall. The half against the building gets intense sun almost all day; along the wall, deep shade except about an hour of early morning sun. Through much trial and error, perrenials that have done well along the wall are:
hosta, celedine poppy (Diphilium), begonia, jacobs ladder, bleeding heart, tradescandia, and black mongo grass. Vinca (periwinkle) and ajuga for ground cover.