Perennial herb grown as a densely branched annual summer bedding plant 20-30 cm tall. Leaves of lower stems ovate to obovate, toothed, the upper ones linear. Flowers in spikes, mostly blue or violet with white or yellow throat, occasionally white; summer.
Grown as a range of habit and flower colour cultivars, popular as the Dynamite, Fountain and Moonshine series.
Other cultivars listed include L. 'Cambridge Blue', L. 'Half Moon', L. 'Lilac Falls', L. 'Midnight Moon', L. 'Paper Moon', L. 'String of Pearls', L. 'True Blue' and L. 'White Lady'.
Source: (2002). Campanulaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.
Flowers dark violet-blue.
Dwarf, densely branched, flowers deep blue.
Flowers deep blue with a white centre.
Flowers rose with a white centre.
Trailing; flowers deep blue with a white centre.