Gap fillers for this boarder?

[SureFootedWhispher]

Back of boarder is against the wall of first garden level. South East. Just seems ti gave shrub and no fillers. Also have spaces that need filling. So can see lots of soil.

Have Violet tree, Hellaboares, SPACE, bamboo, steps, LARGE SPACE, clematis, Eucylptus tree, SPACE, I think a chinese rose then Elderflower tree.

I like a leafy tropical look and have other bamboos and fatsias.

Just seems to have..

Are after perennials then rather than more shrubs/wall shrubs?
Acanthus is leafy and gets big, good gap filler.

www.crocus.co.uk/plants/_/acanthus-mollis/classid.48/

That looks nice. I always go for evergreen but wondering whether it is time for a change. My boarders are one plant deep and would love them to look fuller.

It is semi evergreen so keeps its foliage in a mild winter like the one we just had.
Very hard to plant a narrow border well, how deep is this particular border? Can you enlarge it?

I just posted to say that this would be a totally different thread if it was in the Education topic.

I was just thinking why somebody in boarding school might require clothing from Gap as fillers!

What about a nice flax like joker or evening glow?