The shrub on the right is buttonbush (Cephalanthus occidentalis). Flowers are: orange coneflower (Rudbeckia 'goldsturm'), sweet Joe-Pye (Eutrochium purpureum), anise hyssop (Agastache foeniculum), pokeberry (Phytolacca americana), and catmint (Nepeta × faassenii).
Closer to the ground there's: wood sorrel (Oxalis sp.), three seeded mercury (Acalypha rhomboidea) and blue violets (Viola sororia). The empty space has wild stawberry (Fragaria virginiana) slowly creeping and a young little bluestem (Schizachyrium scoparium).
The image below shows the opening of the rain garden where the runoff enters. Plants are 4 - 5 inches max. Here there's: Virginia pepper (Lepidium virginicum), blue violet (Viola sororia), wood sorrel (Oxalis sp.), nimblewill (Muhlenbergia schreberi), prostrate spurge? (Euphorbia sp.).
Also seen: white clover, creeping cinquefoil, and Bermuda grass.
I see you mulched the yet uncovered areas. Tried the same when redoing the backyard, to minimize evaporation, but only put some red clover seeds in (on) the ground, with some wildflower seeds in between. Did you also put the flowers i as seeds, or as whole plants?
Most of the flowers are divisions of plants, some volunteers and others I got as plugs in summer 2022. I decided to start small and expand over time. The coneflower was four plants last spring which I divided into 12, then into about 30 this spring. Rose milkweed and late boneset are just as prolific.
The mulch was leftover from a chipdrop. I used it to make the beds look "intentional" when everything was sparse and muddy back in February :) The plan is for everything to grow so dense that I won't need to mulch it again.
The local cottontail raised her litter in my yard and the family didn't care for them, other than using them as a hangout spot. They did eat all the Virginia spiderwort and there's a bunch of violet stems around with no leaves, but mostly they stick to the plantains (Plantago sp.) in the lawn.
I had no idea deer lived in the city until I started doing this. Sometimes I'll catch one sleeping in my backyard which is a surreal sight. They munched the sunchokes, hazelnut, and chokeberry to the ground, but all are bouncing back.