I've been trying different plants in that strip of soil between the sidewalk and the curb for several years. This area is either mostly or full sun, hot, and dry. I tend to use annuals since I'm trying for a lot of color but use a few perennials if they have nice foliage when not in bloom. I've converted about half of the grass to flowers and expand it by a couple of feet every year. The perennials that tend to look good when not blooming are "Stella D'Oro" Day Lilies, Siberian Iris, Clemantis, Agapanthus, Gaillardia, and Creeping Phlox. I like Iris when they are blooming but by August they are looking pretty shabby and Spiderwort is OK but invasive. I've used a number of different annuals but have ruled out petunias (I like them but I've never had a full season where they looked good--they always look good in someone else's garden). Saliva and Zinnias are very dependable. This year I've used Lantana and Melampodium as the annuals.
I really like the show that Gaillardia puts on--but deadheading needs to be done every week.
This weeks church flowers and a couple of arrangements. I harvested the cat tails from a ditch.