Cultivars
'Evergreen Giant'
This grass-like perennial has a tall clumping habit with long dark green strap-like leaves and has profuse, purple flowers in spikes that appear in late spring. It is an excellent low edging plant attaining a height of 700mm (30in) and grows in full sun to semi-shade. It prefers a well drained moist soil and is suitable for coastal regions.

'Iirf' PBR Isabella ™
This compact form grows to 400mm (16in) tall and wide with dark green fine textured leaves. During summer showy pink flowers are arranged in an upright spike that protrudes from the foliage and the plant is commonly grown in rockeries or as a specimen in a small garden. It tolerates most well drained to temporally wet soils and an open full sun to heavy shaded position.

 It is drought and frost tolerant and once established it has a low water requirement (Scale: 1-drop from 3), responding to mulch and an occasional deep watering during dry periods, particularly for young plants.

'John Burch'
This plant has gold variegated foliage with large tall flower spikes.

'Joy Mist'
This grass-like perennial has a clumping habit with dark green strap-like leaves and has profuse, purple flowers in spikes that appear in late summer and is planted between pavers or in rockers and for garden edging. It prefers a full sun to semi-shaded position in moist but well drained fertile soil and has a medium water requirement once established.

'Majestic'
This plant has narrow leaves with lavender coloured flowers that occur in tall-flattened spikes.

'Monroe White'
This plant has white flowers on green stalks and requires a shade position.

'Royal Purple' 
This evergreen grass-like perennial has a clumping habit with dark green strap-like leaves and produces upright spikes with dark purple flowers that appear during late summer. It grows in a semi shaded position on well drained fertile moist soils and is frost tolerant and mildly drought tolerant. 

It has a medium water requirement once established (Scale: 2-drops from 3) and is used in borders, containers or planted in rockeries and mass planted as a ground cover.

'Samantha'
This grass-like perennial has a clumping habit with dark green strap-like leaves and has profuse, purple flowers in spikes that appear from late spring to early summer. 

It prefers a well drained moist soil in full sun to semi-shade position and is very frost hardy. It is suitable for coastal regions and is used in borders or rockeries and has a low water requirement once established. (Scale: 1-drop from 3)

'Variegata'
This grass-like perennial produces dark green leaves with a narrow pale yellow margin and is used in garden edging or in patio pots. It is suitable for coastal regions and when established it has low water requirements.