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How to Grow Eucalyptus

Eucalyptus

Perennial

Eucalyptus is a fast-growing evergreen that thrives in full sun and well-drained soil. In the UK, choose a hardy species such as E. gunnii and plant small — young trees establish far better than large specimens. Coppice annually in spring to keep the plant manageable and produce the attractive round juvenile foliage prized by florists. Shelter from cold, drying winds, especially in the first few winters.

Yearly Lifecycle

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JanFebMarAprMayJunJulAugSepOctNovDec
Bud Break Spring Growth Flowering Growing

Care Essentials

Rarely needed. Avoid high-phosphorus feeds.

Watch For

  • Eucalyptus gall wasp
  • Silver leaf
  • Psyllids

Companions

Grasses, Lavender, Cistus

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Care Requirements

☀️ Light

Full sun in an open position

Full sun is essential. Eucalyptus needs an open, bright position to grow well and develop strong wood.

💧 Watering

Water young trees; drought-tolerant once established

Water young trees regularly during their first two summers. Established eucalyptus is drought-tolerant once its deep roots are developed.

🌱 Fertilizing

Avoid phosphorus; rarely needs feeding

Rarely needed. Avoid high-phosphorus fertilisers — eucalyptus is adapted to low-phosphorus soils and can suffer toxicity from excess.

✂️ Pruning

Coppice in spring or prune to shape

Can be coppiced annually in spring by cutting to a low stump to produce attractive round juvenile foliage. Alternatively, prune to shape as a tree in spring.

❄️ Overwintering

Shelter young trees from cold winds

Hardiness varies by species. E. gunnii is one of the hardiest. Young trees need shelter from cold, drying winds for the first two or three winters. Stake well.

Growing Tips

Plant small for best results

Buy the smallest available plant and establish it well. Large eucalyptus transplant poorly because of their fast, top-heavy growth.

Coppice for juvenile foliage

Cut to a low stump each spring to keep the plant shrub-sized and produce the round juvenile leaves used in floristry.

Skip the phosphorus

Avoid high-phosphorus fertilisers — eucalyptus is adapted to low-phosphorus soils and can suffer from toxicity.

Shelter young trees from wind

Young trees are vulnerable to cold winds. Stake well and provide a windbreak for the first two or three winters.

Pests & Diseases

Pest Eucalyptus Gall Wasp

Identification: Raised, lumpy galls on stems, leaf stalks, and midribs; distorted growth; heavy infestations weaken the plant

Organic treatment:
  • Prune out and destroy galled growth before adult wasps emerge in spring
  • Coppice affected plants hard to remove all galled wood
Chemical treatment:
  • No effective chemical treatment available
Pest Eucalyptus Psyllids

Identification: Small sap-sucking insects on young leaves; white waxy secretions; distorted and discoloured new growth

Organic treatment:
  • Encourage natural predators such as ladybirds and lacewings
  • Prune out heavily affected shoots
Chemical treatment:
  • Spray with a systemic insecticide if infestations are severe on young trees
Pest Eucalyptus Sucker

Identification: Flattened, scale-like nymphs on leaf undersides; copious honeydew and sooty mould

Organic treatment:
  • Blast off with a strong jet of water
  • Prune out heavily infested growth
Chemical treatment:
  • Apply a systemic insecticide in spring when new growth appears
Disease Silver Leaf Chondrostereum purpureum

Symptoms: Leaves develop a silvery sheen; affected branches die back; purple-brown fungal brackets on dead wood

Treatment: Prune out affected branches at least 15cm below stained wood; sterilise tools

Prevention: Prune in dry weather; avoid winter pruning; seal large wounds

Disease Phytophthora Root Rot Phytophthora spp.

Symptoms: Yellowing foliage; wilting despite moist soil; dark discolouration at the stem base; rapid decline

Treatment: No reliable cure; remove and destroy affected trees

Prevention: Ensure excellent drainage; avoid waterlogged sites; plant on well-drained ground

Spacing & Planting

Plant spacing 600 cm
Row spacing 600 cm
Mature height 1500 cm
Mature spread 600 cm

Large evergreen tree native to Australia. Spacing varies by species - from 300cm for mallee types to 1000cm for large timber species. Fast-growing. Aromatic foliage.

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