A quite rare and choice plant suitable for a well drained sunny or semi-shaded site in border, rockery or wall. When planted among shrubs will happily scramble through them. Palest blue, nodding, bell shaped 4cm (1½in) blooms, which reveal sumptuous orange and maroon centres when tilled. Flowers summer. Height 60-90cm (2-3ft).
Sow from spring to mid summer on the surface of a good free draining, soilless compost. Do not exclude light which is beneficial to germination. Keep the soil moist but not wet until germination which takes 7-40 days at 20C (70F).
Once established they are best not disturbed.