Columbine (Aquilegia hyb.) is a wonderful cottage flower.
It offers height for the early summer garden, which is prefect for peering through when planted at the front of the boarder. Its dainty blooms dance on the breeze... and its colors and forms seem endless. And, as is true of most historical cottage flowers, they grow from seed very easily, given some nurture.
Shade Path garden. They are a great succession planting, filling the gap from Narcissus 'Thalia' to the start of the foxgloves (which you can see shooting up in this May 30th photo).
See more of the Shade Path in May... or June last year.