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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 crimson bottlebrush 'Splendens'
Synonyms Callistemon 'Splendens'
Family Myrtaceae
Genus Callistemon are evergreen shrubs with aromatic, linear to lance-shaped leaves and bottlebrush-like spikes of flowers in which the long colourful stamens are prominent
Details 'Splendens' is a lax medium-sized evergreen shrub with slender arching branches clothed with narrow, rather stiff leaves, and bearing bright crimson bottlebrush-like flower spikes 15cm in length near the shoot tips
Foliage Evergreen
Habit Bushy
Fragrance Foliage
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H3
Full Sun
Aspect South-facing or West-facing
Exposure Sheltered
Clay
Loam
Sand
MoistureMoist but well-drained
SoilClay, Loam, Sand
pHAcid, Neutral
Ultimate height 4-8 metres
Ultimate spread 2.5-4 metres
Time to ultimate height 10-20 years
Cultivation Grow in a sheltered position in full sun with a moist but well-drained soil
Propagation Propagate by seed or from semi-hardwood cuttings
Suggested planting locations and garden types Wall-side Borders Mediterranean Climate Plants City & Courtyard Gardens Patio & Container Plants
Pruning Pruning group 8
Pests Can get glasshouse red spider mite, mealybugs and scale insects under glass
Diseases Generally disease free
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