Shady fence facing front door



Im looking for ideas

This is a mossy old fence facing out front door which I’ve cleaned and put a first coat of cream on. Swept up the debris and put some large pots until I get some inspiration.
The silver birch has large roots running along the surface so there’s no usable soil. And I don’t think it gets any direct light, just that reflected off our cream house walls.
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Geranium nodosum
Polypodium vulgare
Euonymus fortunei
Epimedium x versicolor 'Sulphureum'
Hardy Cyclamen
Aster schreberi
Tellima grandiflora
Fibrous begonias and busy lizzies cope with shade with some variegated ivy to trail over the edge and a fern or 2.
You could plant up plastic pots with spring bulbs to sit inside your terracotta ones and pop them in when they are in flower.
As there are no weeds there I assume anything will be hard to grow, so maybe just swapping in seasonal bulbs or buying plants in flower every few months.
GW recommend a Rosa “Wedding Day” but say it wants moist soil and plenty of space. Also partial sun, but I’m pretty sure it wouldn’t get any direct sunlight.
https://www.gardenersworld.com/plants/climbers-to-grow-in-shade/
https://www.rhs.org.uk/Plants/130495/Begonia-Semperflorens-Cultorum-Group-(S)/Details