An ornamental strawberry sounds like a complete oxymoron, but I saw these once at a garden show and had to have them. They are a hybrid between a a wild strawberry and a potentilla, I think, and you can start with just a few plants and end up with a mat of groundcover if you want. It spreads via stolons and if you keep track of it, it’s easy to pull out the ones you don’t want. I just let mine ramble, since I need space-fillers anyway. The pink blooms are super cute and cheerful, and since my daughter loves pandas, I planted some in “her” garden (also in the parking strip). The berries are edible but not all that tasty, so we usually leave them for the birds.
(Sorry, kind of out of focus. I think I need a new camera. Any recommendations of good ones for garden photography without spending a huge bundle?)