CLUSTERED BELLFLOWER:  This dwarf variety grows to 25 cm tall in a tight clump.  Dense clusters of deep blue to purple bell-shaped flowers appear in midsummer.  Ideal as an edging plant or the rock garden, the species prefers average well-drained soil in full sun to light shade.  Seeds can be direct seeded in late fall, early spring, but best started in containers in April/May and transplanted out.  Cover the seeds with just a light dusting of soil, as they need light to germinate.  100 seeds.    P456