Shrubs, trees and climbers

Eucalyptus

EucalyptusMyrtaceae
Also: Gum tree, Cider gum
AT A GLANCE
Full sun Water: average H5down to −15 °C 3–10 m tall · 2–5 m wide In a pot: yes

Stake firmly for the first two to three years — fast top growth can outpace root anchorage in strong wind.

Care

Light

Shelter young plants from cold wind, which can scorch or kill soft new growth.

Water

Water well while establishing; low water need once settled.

Soil

Well-drained soil of most types; dislikes permanent waterlogging.

Pruning

Coppice (cut back hard, close to the base) every 1-3 years in spring to maintain compact size and rounded juvenile leaves — the defining maintenance choice for garden-grown plants of this genus.

Feeding

No feeding. These grow extremely fast already, and a fed eucalyptus makes tall soft growth that is far more likely to be blown over or damaged by frost — the opposite of what you want on a wind-exposed British site.

Propagation

From seed, sown in spring with warmth; germination is quick and growth is startlingly fast, so a seedling catches up with a bought plant within a couple of years. Cuttings are notoriously difficult and not worth attempting.

Month by month

Months change with the climate: in southern Italy tomatoes go out two months earlier than in England.

  1. MarchCoppice hard for compact size and juvenile foliage, if size control is wanted. how ›
  2. AprilVigorous new growth flushes after coppicing.
  3. NovemberShelter or wrap young plants in a hard winter, especially for the first few years. how ›

Months based on climate: UK. Your choice stays on this device.

  1. MarchCoppice hard for compact size and juvenile foliage, if size control is wanted. how ›
  2. AprilVigorous new growth flushes after coppicing.

Months based on climate: Northern Italy. Your choice stays on this device.

  1. FebruaryCoppice hard for compact size and juvenile foliage, if size control is wanted. how ›
  2. MarchVigorous new growth flushes after coppicing.

Months based on climate: Central Italy. Your choice stays on this device.

  1. FebruaryCoppice hard for compact size and juvenile foliage, if size control is wanted. how ›
  2. MarchVigorous new growth flushes after coppicing.

Months based on climate: Southern Italy and islands. Your choice stays on this device.

Common problems

Wind rock

How to spot it. Instability in young, fast-growing specimens, especially in strong wind.

What to do. Stake firmly for the first two to three years.

Frost damagefull sheet ›

How to spot it. To soft young growth in a late or early cold snap.

What to do. Shelter young plants; established, hardier species tolerate more cold.

Psyllid insects

How to spot it. Sticky honeydew and sooty mould on leaves.

What to do. Tolerate low levels; encourage predators.

Questions

Eucalyptus: is it hardy?

H5: Hardy in most of the UK, but can struggle in the coldest inland or upland spots. It survives down to −15 °C.

Can it grow in a pot?

Can be kept compact in a large pot for a few years by regular coppicing, though it is ultimately a fast, thirsty tree better suited to open ground.

Eucalyptus: when do you prune it?

Coppice (cut back hard, close to the base) every 1-3 years in spring to maintain compact size and rounded juvenile leaves — the defining maintenance choice for garden-grown plants of this genus. In the calendar for UK, pruning falls in March.

When do you feed it?

No feeding. These grow extremely fast already, and a fed eucalyptus makes tall soft growth that is far more likely to be blown over or damaged by frost — the opposite of what you want on a wind-exposed British site.