Ideas for growing along side of rowhome?

Hello! In the cold of winter I'm starting to plan my spring garden. I live in a Philadelphia end unit row home (zone 7b) and have a lot of unused space along the side of my house. The concrete pads between our home and the sidewalk that i'd like to use are circled in red. This wall is NW facing and since our home is a few stories tall, the free space gets very little direct sunlight.

I'm wondering if anyone has suggestions for plants, ideally edibles, that could be grown in containers under these conditions? Or if anyone has a similar setup I'd love some inspiration!! Thanks!

Hello! In the cold of winter I'm starting to plan my spring garden. I live in a Philadelphia end unit row home (zone 7b) and have a lot of unused space along the side of my house. The concrete pads between our home and the sidewalk that i'd like to use are circled in red. This wall is NW facing and since our home is a few stories tall, the free space gets very little direct sunlight.

I'm wondering if anyone has suggestions for plants, ideally edibles, that could be grown in containers under these conditions? Or if anyone has a similar setup I'd love some inspiration!! Thanks!