Garden Center

Flower bed help.
It's looking too chaotic. I now know repeating a few plants looks better, but I don't know what to change.
I want the hydrangea and salix to stay. I want plants with little pruning, not constant deheading. Its on the west side of a south face garden. Gets sun till about 3, although the top end with the hydrangea gets dappled sun from around lunch time due to 2 trees.
Theres hydrangea, verbena (which gets taller than the fence so looks ridiculous), astilbe, bleeding heart, heuchera, escallonia, brunnera, crocosmia, lavertia, dreamland and roxanna geranium, nandina, grasses, Veronica, salix, foxglove (which also grew taller than the fence this year so didnt look right), buddleia, black stocking, hollyhock (again too tall for the narrow bed), nemesia, a rhododendron hidden under dreamland, and a couple i cant get to the tags to check.
What would you do please, not changing the size or shape of the flower bed, just the plants?

I planted my zinnias as thick as possible and I am NOT disappointed one bit🩷😍
When I say “ thick as possible” I really mean I was too impatient to wait to see what sprouted and filled everything in heavily

"Is this also considered a hosta plant? It looks similar to what I've seen! "

I bought a B&M wisteria a few weeks ago and it's rapidly outgrowing the support canes it came with.
I'm thinking it needs a trellis now but I don't quite know what would be best.
A trellis planter and replant it? Keep it in its pot and get a wall mounted trellis? Corner trellis so it can creep along the fence?
I'm a novice gardener. Have I bitten off more than I can chew? 😬
I know these things can get big but I was going to cut some back twice a year.

Looking to extend my bottom fence higher with Battons for some privacy, can anyone please reccomend the cheapest and easiest way of doing this? Thank you