I've been looking into that same problem for my back deck. Mostly shade, but a little sun in the AM. The only ones I could find that are perennial are Dutchman's Pipe, Aristolochus. Interesting flower, not evergreen. Or kadsura japonica, not evergreen either. Or climbing hydrangea which needs sturdy support. You could try clematis if you have a little sun.

Florrie

I'm not sure, but Virginia Creeper may work. Check with a nursery or online first tho. I'm not sure how large it gets; I just remember seeing it on a friend's house.

Thanks to both who replied so far. I forgot to mention that I live in northern Iowa. I'll have to check both of these out with the local nursery staff.

Confederate jasmine will tolerate shade which keeps it growing slow and is evergreen in my area. However I don't know how it will do in your colder climate. Virginia Creeper is very aggressive in the south and a big no near the house, also likes at least a few hours of sun. I am looking for something simmilar to what you asked. I have a wall planter on my front porch that gets about 2 hours of sun mid morning. I hung it there to cover a patched hole in the brick. All the plants I have tried so far just die out slowly. Though I am partly guilty of not watering regularly once the blooms stop. I don't use my suggestion of Confederate Jasmine do to the wall planter is to small and the space won't take a larger one. I need a small plant of some kind for shade in a very hot climate. Prefferably an evergreen vine. No I will not do ivy! I just spent 3 years getting rid of it on the back of the house.