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
Buy this plant
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
Get involved
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.