Morning sun or afternoon sun? It makes a big difference.

the area receives the mid day through rest of afternoon sun. I would like blooming in summer. But there is room for some shorter flowers in front. Let me try to post my other photo, Houzz would not let me last night.

A few more thoughts...

Do you like hydrangeas? I could see a smaller one like bobo or LQF there. Long bloomers too.

Bobo on right...Later turning pink

Young LQF

veronicas for something shorter...

Or long blooming poppy mallow/wine cups.... If you have room to sprawl and dare to be bold LOL

Looks to me you could use something with some lightness as it seems kind of a dark space. Are you wanting spring blooms or something that blooms all summer? Do you want some height or ground hugging? There are some brilliant azaleas as well as
The shrub roses. I also like the previous posters hydrangea suggestions. And there’s always day lilies, Hosta, and irises. Multiple color choices in those as well.

Gardenho it is funny you mention a Hydrangea because I actually had one there and removed it because it was not blooming at all. Claudianne— the area looks dark in the picture because the angle of the sun has put the area in shade at this point in the season and it was a cloudy day. Otherwise this area receives enough sun for the delphinium, bee balm, coneflowers, rudbeckia and my Weeping Willow tree, just to the left of the bee balm.

I like the idea of the phlox. Do they need all day long sun? I don’t have room for crawlers or creepers. I have seen a flower called “cockscomb” something. Not sure what light requirements are needed for that. I also like the veronicas. Not sure this area would support day Lilies, there are many varieties of them that I love as well. I don’t think the light conditions are good for roses. Thanks for you suggestions. I am open to any others as well.

I would also plant some early spring bulbs in between some of the plants. Crocus are my first ones. Daffodils would come back for years to come, also. As long as you don't mind the yellowing foliage when they die down, but that's when you have other plants getting big enough to hide the leaves a bit. If you're like me you want to see flowers ASAP in spring!

Dahlias are wonderful for late-ish Summer into Fall.