An amazing little plant (though uncommon) that produces huge amounts of flowers over a long period in summer. Flowers are double or semi-double and a good, rich blue that fades to pale blue as the flowers age giving a two-tone effect. Like all the C. cochlearifolia types, it creeps gently underground but isn't invasive.
For such a dainty and pretty plant it's actually very adaptable and is strong enough to do well in most environments. About 7cm (3") high.