Campanula rotundifolia (harebells or bluebells of Scotland) are a beautiful bellflower, with a delicate look, but a hardy nature. These hardy perennials return reliably after a cold winter, and show some of the earliest foliage in my spring garden. The flowers are some of the last ones blooming in fall. You can see C. rotundifolia still in flower in the garden after a fall snowstorm in this article.
The multitude of little purple blue bells hanging from the stalks of Campanula rotundifolia are especially pretty. These bellflowers start blooming at the beginning of summer in my garden, and continue well after the first frosts. The harebell flower stalks are very thin, and in the shade they will lean a bit. In a sunnier garden area they are upright. They produce more flowers in a sunny location, but do well in part shade, and I even have some flowering in medium shade.
Here are some Campanula rotundifolia in one of the shadier locations. This photo reminds me of how harebells often looks in the wild. They have a looser structure in this lower light, and the flowers are leaning a bit on the yew. The plants have a central cluster of low leaves (basal leaves) that are somewhat rounded with a scalloped edge, while the slender flower stalks have small, long, thin leaves. My plants are about 45 cm (18 in) tall, to the tips of the tallest flowers.
Harebells pair up well with many other garden perennials. They look great with other blue and white bellflowers. I have some with a group of white C. carpatica and a group of blue C. carpatica. I also have some next to some Brunnera, and they weave between the Brunnera and yew. Because the basal foliage is so short, and the flower stalks are so thin, they seem to fit into whatever space you give them in the garden.
This bellflower is like a taller version of Campanula cochlearifoliaa. Campanula rotundifolia is one of my favourites in the garden, for its hardiness, long bloom time, sweet little bells, and simple beauty.