North facing balcony

Hello Gardening Experts,
I have a balcony facing north (20' east of north, only a couple of hours of sun first thing in the morning), and am in zone 6. Any ideas of what would do well? Ideally I'd like some greens (lettuces/spinach/salad stuff). Anything else that might do well? I think columbines might, what about lilies? Pansies?
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