Edraianthus is a relative of Campanula, but not so often cultivated. While a few species are a bit more strictly rock garden plants, E. graminifolius is not fussy and can be grown in a raised flower bed, in a full sun, and well drained conditions.
Like its name suggests, it has linear, grassy leaves and large blue, campanulate flowers, in terminal clusters in May-June. Even the clusters of capsules are looking quite cool until they mature.
Germination: easy, sown in the spring, superficial, like a Campanula. If grown well, it will flower in the third year.