Variation
var. robbiae
This perennial sub-shrub spreads by runners and grows to a height of 600 mm (2 ft) by 300 mm (1 ft) wide forming a small clump. It has dark glossy green foliage and producers clusters of lime-green flowers above the foliage from mid-spring to early summer. It prefers a semi-shaded protected position and is commonly planted under trees in woodland setting where it forms a carpet-like cover.

Cultivars
'Blackbird' PBR
This clump forming evergreen perennial sub-shrub grows to 600 mm (2 ft) tall forming a compact bushy habit. It has dark purple velvety foliage particularly when it grown in full sun and producers large clusters of yellow and green flower bracts on a deep red stems above the foliage during spring.  It is an ideal plant for a small or arid garden tolerating high temperatures and will grow in USDA zones 6-10.

'Craigieburn'
This clump forming evergreen perennial sub-shrub grows to 600 mm (2 ft) tall with reddish stems forming a compact bushy habit. It has reddish brown foliage particularly when it grown in full sun and producers large clusters of light yellow-green flower bracts on a deep burgundy stems above the foliage from late spring to early summer. It is planted in from small or cottage gardens or used in patio pots and planter boxes and grows in USDA zones 5-8.

'Frosted Flame'
This clump forming evergreen perennial sub-shrub grows to 450 mm (18 in) tall and wide forming a compact bushy habit. It has grey green leaves that are edged in cream and as the temperature drops the leaves turn a reddish colour from the shoot tips then progressively down the plant. During late spring it produces clusters of chartreuse flowers on stems above the foliage. It is an ideal plant for a small or cottage garden and will grow in USDA zones 6-10.

'Helena's Blush'
This clump forming evergreen perennial sub-shrub grows to 300 mm (1 ft) tall forming a compact bushy habit. It has grey green leaves with creamy yellow variegations and pinkish margins. It producers clusters of yellowish flowers bove the foliage from mid-spring to early summer.  It is an ideal plant for a small or arid garden tolerating high temperatures and will grow in USDA zones 4-9.

'Marks Red'
This clump forming evergreen perennial sub-shrub grows to 600 mm (2 ft) tall forming a compact bushy habit. It has red flushed foliage particularly when it grown in full sun and producers clusters of yellow-green flower bracts above the foliage from mid-spring to early summer. It is planted in smaller cottage gardens or used in patio pots and planter boxes for colour contrast. it grows in USDA zones 6-10.

'Purpurea'
This clump forming evergreen perennial sub-shrub grows to 300 mm (1 ft) tall forming a compact bushy habit. It has dark purple foliage and producers large clusters of lime-green flower bracts on a reddish stems above the foliage during mid-spring. It is planted in woodland settings or grown in patio pots and planter boxes. In shaded areas the foliage reverts to green. It grows in USDA zones 6-10.

'Variegata'
This clump forming evergreen perennial sub-shrub grows to 600 mm (2 ft) tall forming a compact bushy habit. It has grey green leaves with creamy white margins when it grown in full sun and producers large clusters of lime-green flower above the foliage from mid-spring to early summer.  It grows in USDA zones 6-10.

'Welsh Dragon'
This clump forming evergreen perennial sub-shrub grows to 500 mm (20 in) tall forming a compact bushy habit. It has dark green leaves with a pewter overlay with red flushes and producers large clusters of greenish flowers above the foliage during spring.  It grows in USDA zones 6-10.