One of the most handsome bell-flowers, this large plant is easily recognizable by its dense, blue-flowered umbel, similar to, but bigger than that of its close relative, the "Clustered bellflower"(C. glomerata). Although it is usually short-lived, it keeps going easily from year to year as it produces enormous quantities of seed, one plant producing up to 20–30,000 seeds. The flowers are especially attractive to bees.
Sow immediately at any time onto preferably a soil-based compost, covering with fine grit to approximately their own depth. Germination MAY be quicker if kept at 15 to 20 degrees C. but many seeds WILL NOT come up the year they are sown, needing winter chilling after sowing, and ONLY come up with natural spring germination.
Common name:Bristly Bellflower
Classification:Hardy perennial, Hardy biennial