Eucalyptus Gunnii

Stock status (May 2024)

General characteristics:

Hardy:Very, frost tolerant below -16°C
Soil:Tolerant of a wide PH and moisture range
Growth:Fast, up to 1.5m per year
Height:20m plus with a 6m crown if stand alone
Biomass:Good firewood, can be coppiced, polarded or logged
Bees:Good flowering for bees, flowers from July to August

Common names

Also known as; Cider Gum

Eucalyptus Gunnii are possibly the most popular Eucalyptus grow in northern Europe, certainly in Ireland and the UK. They are tough and hardy, though so are other less well known Eucalypts.

The blue grey juvenile leaves are often used by florists, as background to floral displays. If pruned regularly Gunnii will retain its juvenile blue grey leaves, left to grow the leaves will become green, elongated and dagger shaped. Still attractive though 🙂

Gunnii is grown commercially for floral foliage. Teagasc published a report on the likely commercial returns. Eucalyptus for Cut Foliage also my page on Floral Foliage

Gunnii aren’t generally grown for firewood though once cut, chopped and dried the logs will burn well.

Gunnii are noted for its exceptional tolerance to cold, down to -16°C. My personal experience with this variety is that it is also wind resilient. They survived Storm Hannah in April 2019 with ease, and indeed proved hardier than native trees such as Blackthorn, Alder and Beech.
I grew Gunnii in Scotland, and they were completely unaffected by the severe cold snap of 2010; below -9°C for a couple of weeks.
The older your Eucalyputs gets, the more acclimatised and hardy it will become.

Some photos of my best Eucalyptus Gunnii here at Clounsnaghta.

Very healthy, around six years old and perhaps ten metres tall.

Healthy Eucalyptus Gunnii tall

Most Eucalyptus, if not all shed their bark once a year to reveal a beautiful colour scheme. Different colours for different varieties.

Healthy Gunnii bark close up

The juvenile leaves of Gunnii are round and blue. It was interesting to see this hare nesting in my experimental Gunnii hedge.

Hare in the Eucalyptus Gunnii hedge

The leave mature to longer spear shaped green.

There can be variations, check out the fact sheet on EuClid

Eucalyptus Gunnii adult foliage