Baby Betsy McCall is a great older micro miniature. She is constantly in bloom with tiny 1 inch flowers that are white blushed with pink. If you can get low enough to smell her, you'll find her blooms quite fragrant too.

She forms a small, dense, upright bush that gets about 1 foot high, with lots of tiny narrow shiny leaves. She's quite winter hardy here, about the same in hardiness as Cinderella. Below is an image of a young bush.