Cultivars
'Tetraploid'
This upright perennial grows to 750 mm (30 in) tall and produces large dragon like flowers.

'Majestic'
This upright perennial grows to 500mm (20 in) tall and produces large dragon like flowers.

'Tom Thumb'
This upright perennial grows to 200 mm (7¾ in) tall and produces large dragon like flowers.

'Magic Carpet'
This perennial grows to 150 mm (6 in) tall and produce masses of large dragon like flowers.

'Potomac Dark Orange'
This upright perennial produces orange-yellow flowers that are arranged in a dense raceme during spring. It is suitable for cottage gardens and requires wind protection.

'Floral Carpet'
 This low growing perennial grows to 200 mm (7¾ in) tall and produces dragon like flowers.

'Madame Butterfly'
This perennial grows to 750 mm (30in) tall.

'Sweet Heart'
This low growing perennial contains a height of 300 mm (1 ft) and is used in small gardens or rockeries.

'Bright Butterflies'
This medium size perennial grows to 600 mm (2ft) tall and is used in front border planting.

'Little Darling'
This low growing perennial attains a height of 300 mm (1ft) and is used in massed planting, or as a low border. 

'Coronette'
The small perennial grows to 350 mm (14 in) tall and is suitable for small gardens and rockeries.

'Carioca'
This upright perennial grows to 500 mm (20 in) tall and is used in border planting.