Summer interest for shadey spot

I have a smallish (<1m square) bed next to the main garden steps. It's very sheltered, with the wall behind it and a tree canopy above - dappled shade at best in the winter/early spring but basically complete shade April through November while the tree is in leaf. I'm slowly filling it with snowdrops/bluebells, but it's quite bare for the rest of the year. Any suggestions for what I can put in to fill it a bit more through the summer months? It's not a wet or boggy area at all but the soil is quite clayey.

 

Geranium Phaem Margaret Wilson (ideal for shade) white/grey foliage; brunnera Hadspen Cream; Vinca Major Alba (white flowers in shade is good) ; astrantia jumble hole or similar white flowered variety; astrantia Sunningdale Variegated......delightful variegated foliage with white pincushion flowers; the best of ferns, the japanese painted fern....Ursula's Red, for example, with superb blue/grey foliage, red stems and red veins in the leaves; white japanese anemones; campanula Birch Hybrid; actea Brunette, superb purple/black sculpted foliage and white scented flowers; persicaria dikke foskes, alba or similar for flowers from early June to autumn; bowles golden sedge; carex testacea; hackonechloa All Gold; I would choose one or two of these for that spot, depending on my criteria. Hostas like Liberty too but slugs and snails near that wall would prob decimate them. A choice to blend two of them there is how I would proceed.

I would not have bluebells there though 2nd bassoon for 2 reasons, viz., the foliage is thick and suffocating to other plants and they are invasive.

 

Many thanks for the list @Verdun; I love the actea, never come across them before. I thought it would be too much shade for japanese anemones, good to know I don't have to rule them out. Would a small fuschia cope, for colour/shape variation? I *think* I'd like something(s) that die back in winter, to let the snowdrops come through. Are native bluebells as invasive as the Spanish ones?

 

How about fuchsia Genii? A hardy yellow leaved variety?
No, the spanish b are more invasive but bluebells are great for wild spacious areas I think. Not advisable in the average garden in my opinion