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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names hebe 'Caledonia'
Synonyms Hebe 'E.B. Anderson' Hebe 'Knightshayes'
Family Plantaginaceae
Genus Hebe are evergreen shrubs or small trees, with paired, simple leaves and racemes or spikes of small, 4-lobed, tubular to salver-shaped flowers in summer and autumn
Details 'Caledonia' is a rounded, dwarf, compact, evergreen shrub with dark green foliage, tinted red when young, and violet flowers from late spring to early autumn
Foliage Evergreen
Habit Bushy
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H4
Full Sun
Partial Shade
Aspect West-facing or East-facing or South-facing
Exposure Sheltered
Chalk
Clay
Loam
Sand
MoistureMoist but well-drained, Well-drained
SoilChalk, Clay, Loam, Sand
pHAlkaline, Neutral
Ultimate height 0.5-1 metres
Ultimate spread 0.5-1 metres
Time to ultimate height 5-10 years
Cultivation Grows well in poor to moderately fertile soil in sun or partial shade with protection from cold, drying winds
Propagation Propagate by seed sown in containers in a cold frame as soon as ripe. Cultivars will not come true. Root semi-hardwood cuttings in late summer or autumn with added bottom heat
Suggested planting locations and garden types Banks and Slopes Flower borders and beds Gravel Garden Rock Garden City & Courtyard Gardens Coastal Cottage & Informal Garden Patio & Container Plants
Pruning Pruning group 9
Pests Aphids may be a problem
Diseases A leaf spot and a downy mildew may be a problem
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
hebe 'Caledonia'
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.