Description from Possibility Place: This bellflower has wispy, lance-shaped leaves with large bell-shaped floweres that hang on the ends of its lanky stems. Although they do not flower until their second season, the bloom time is worth the wait, lasting 2-3 months in late summer. Being so small and dainty, it does not compete well with larger, more aggressive species. It is not visited by too many pollinators, but a variety of bee species will visit it for its nectar.
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Click here for the native pollinators that feed on Campanula rotundifolia.