‘October White’

White flowers, X–XI; dark green foliage; erect; height 31–45cm; spread 31–45cm.

Introduced before 1964.

Name alludes to the flower colour and time of flowering.

‘Odette’

Lilac-pink flowers, VIII–IX; dark green foliage; broad spreading habit; height 31–45cm; spread 31–45cm.

‘Oiseval’

White flowers, VII–VIII; light green foliage; forms a mound; height 16–20cm; spread 26–30cm. One of the best of the St Kilda heathers (K52), named after a hill on Hirta.

‘Old Rose’

Mauve (H2) flowers, VIII–IX; green-gold foliage in summer, acquiring orange tints in winter and the new growth in spring has red tips; dense spreading habit; height 21–25cm; spread 46–60cm.

Introduced by 1987.

Name alludes to the flower colour.

‘Olive Turner’

Mauve to pink (H2, H8) flowers, VIII–IX; dark green foliage, young shoots with red and cream tips in spring; height 31–45cm; spread 46–60cm.

Introduced by Knap Hill nursery (Woking, Surrey, England) by 1975.

Olive Turner has not been identified.

‘Olympic Gold’

Light mauve (H2) flowers, VIII–IX; light golden yellow foliage throughout the year; spreading growth when young becoming more upright, vigorous; height 31–45cm; spread 46–60cm. A sport on ‘Wickwar Flame‘, from A Bosch, Westerlee, The Netherlands, in 1988.

‘Orange and Gold’

Mauve (H2) flowers, VIII–IX; orange and gold foliage; vigorous, semi-prostrate with curling stems; height 10–15cm; spread 31–45cm.

Introduced by Clive Benson (Preston, Lancashire, England) in 1988.

Name alludes to the foliage colours.

‘Orange Beauty’

Mauve (H2) flowers, VIII–IX; orange foliage in winter, turning gold in summer; broad erect habit; height 16–20cm; spread 31–45cm.

‘Orange Carpet’

Mauve (H2) flowers, VIII–IX; gold foliage in summer, orange in winter; spreading; height 16–20cm; spread 31–45cm.

Seedling in a bed of ‘Orange Queen‘; found at Tabramhill Gardens (Newstead Abbey Park, Nottingham, England); introduced by G. Yates in 1973.

Name alludes to the foliage colour and habit.

‘Orange Max’

Pale lilac-pink (H11) flowers, VII–VIII; bronze-yellow foliage in summer, turning bronze-red in winter; creeping; height 10–15cm; spread 31–45cm.

Seedling; found by J. Dekker in his garden at Mijdrecht, Netherlands; introduced by P. G. Zwijnenburg (Boskoop, Netherlands) in 1975.

Named after the finder’s dog (see also Calluna vulgaris ‘Golden Max‘ and ‘Red Max‘).