A perennial to about 1 m tall, generally grown as smaller forms and often treated as a bedding annual. Leaves ovate-elliptic, to 8 cm long, entire. Flowers axillary with a swollen calyx. Corolla tube to about 5 cm long, generally blue to violet with a white eye. Fruit capsule to 2 cm wide.
Jingle Bells Hybrids: Growing to about 25 cm tall. Flowers ranging from white to blue and lavender.
Source: (2002). Solanaceae. 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.