Biomass potential for individual species

Eucalyptus gunnii

Species potential for biomass > Species potential for E.gunnii

Established trees of Eucalyptus gunnii are normally hardy throughout the lowland British Isles, and have been reported to survive -18°C without damage.

However, studies in France indicate that there is considerable variation in cold tolerance within the species, with some seed sources tolerating only -14°C despite certain selections tolerating -18°C. In view of this, it is unsurprising that many established trees in central parts of England, Scotland and Ireland were killed in the prolonged severe winter of 2010-2011. In some locations these trees have started to coppice. The species has moderate vigour and variable, frequently poor form. It can grow well on wet sites. Some varietal selections grown in SW France have very good form and yield, as well as exceptional cold tolerance. The species coppices freely, though the coppice usually becomes a mass of small-diameter shoots on each stump. The species has a reputation for instability due to its shallow rooting, though this has not been critically assessed. It is the most palatable species for browsing mammals. The wood appears to be of moderate basic density (approx 500 kg/m3) at age 15 years.

Eucalyptus gunnii

Eucalyptus gunnii (Alma provenance) in a trial planting in north Kent in January 2010, age 8.5 years.  The larger-diameter stems visible behind are E. nitens of the same age.  The poor stem form is typical of the species, though selections having good form do exist.