Eucalyptus aggregata
black gum
An elegant, moderately fast growing evergreen tree, producing about 1-1.5m of new growth per year when established. Bark is deeply furrowed and brown or mid-grey. Long willow-like leaves are produced on branches that form an open, airy canopy. It is a useful subject for growing in boggy or dry soil conditions and reaches a mature height of 18m
Buy this plant
Size
Ultimate height
Higher than 12 metresTime to ultimate height
10–20 yearsUltimate spread
Wider than 8 metresGrowing conditions
Moisture
Poorly–drained, Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Cream | Green | ||
| Winter | Cream | Green |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Myrtaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Spreading branched
- Genus
Eucalyptus are evergreen trees or large shrubs, often fast-growing, some with attractive bark, most with aromatic foliage, and clusters of small, white, yellow or red flowers
- Name status
Correct
How to grow
Cultivation
Grow in fertile, well-drained, neutral to slightly acid soil, in full sun and sheltered from cold, drying winds. See eucalyptus cultivation
Propagation
Propagate by seed at 13-18°C in spring and summer
Suggested planting locations and garden types
- Mediterranean climate plants
- Architectural
- Coastal
- Cottage and informal garden
- Hedging and screens
Pruning
Pruning group 1 or, for best juvenile foliage, pruning group 7 For more information see Eucalyptus: pruning
Pests
May be susceptible to eucalyptus gall wasp and eucalyptus sucker
Diseases
May be susceptible to silver leaf, oedema and 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.