Callistemon sieberi DC.
alpine bottlebrush
A small, spreading to semi-upright, evergreen shrub reaching 1m-2m, with small, narrow, rigid, dark green leaves with hard points. Bears creamy-yellow, bottlebrush flowers in spikes up to 15cm long in late spring and summer
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Size
Ultimate height
1–1.5 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Green | ||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Myrtaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- 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
- Name status
Correct
- Plant range
- Australia
How to grow
Cultivation
Grow in full sun in moderately fertile, moist but well-drained, neutral or acidic soil
Propagation
Propagate by seed, sown onto moist compost at 16-18C, in spring, or by heeled, semi-ripe cuttings of lateral shoots in late summer
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Mediterranean climate plants
- Wall side borders
Pruning
Pruning group 8; will tolerate hard pruning
Pests
May be susceptible to scale insect, mealy bug and glasshouse red spider mite
Diseases
May be susceptible to honey fungus
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