Gardening / landscaping advice please?

Question by Nénuphar:
Gardening / landscaping advice please?

I live in an apartment/duplex in the city with a decent yard (for an apartment in the city!), but the whole yard and the front face of our building is exposed to direct sunlight all summer… last year all my garden plants got nuked! I’m looking for a tall plant or bush to put in a spot that would shade the window and most of my garden. I live in the northwest so it’d have to tolerate a moderate, wet winter as well. What will tolerate these conditions, and also look nice, like something with great foliage and/or fragrant flowers or fruit? I’m very good with plants, but even with my constant care could a blueberry bush survive? How bout a lilac?
The only restriction I have is my landlord says “no trees”, but there’s an ugly 12-foot black walnut tree there right now, I don’t think he even knows what it is! I’m digging that up and putting whatever I get close to that spot. Right now I have red-leafed corabells, hyacinths, and dwarf and full-sized lupines behind a bamboo fence in the garden (under the window). Suggestions??
Thanks!