I have just dug out an overgrown weed infested border, and now I need to think about what to put in it when it's tidied.
It doesn't get a huge amount of sun, until the height of summer, but then it gets a decent whack. Some traily bits would be nice as the wall isn't lovely, and nothing too tall and solid, since I don't want to obscure views from the windows up the garden.
The soil here is chalky but we'll be digging out the old stuff and bringing down some compost and manure to refill.
Evergreen creeping geranium is one of my favourites - something like Geranium x cantabrigiense 'Karmina' I would definitely have some cyclamen for early spring/late autumn colour too Hellebores Ajuga Reptans I am going here for mostly ground cover , you notice? Will have a think and come back later ,
It looks to me like you're going to need things that can withstand a bit of dryness. I think I might be tempted to go for something like alpines, including some that trail nicely over the edge - aubretia is a classic, but gypsophila repens, Persicaria affinis ‘Superba’, phlox douglasii, ivy-leaved toadflax, delospermums etc. would look great. Secret Gardening Club has a load of these cheap at the moment.
My hellebores just go more leafy after flowering , then a little bit 'tatty' leaf looking without dying off, and the new growth comes through the old leaves . I have one white one just about to burst bud, and a beautiful dark purple one which is somewhat later - the leaves and buds are just nicely showing. I am in Yorkshire, so may be behind others . There are quite a few varieties and colour variations of the geraniums too Don't forget bulbs!!