The latest annual update in our trial of a number of species planted specifically for firewood. All species are on the same soil type so whilst not particularly scientific the findings are sufficient to judge which performs best for us.
Storming ahead in both rate of growth and quality of logs is the Eucalyptus Omeo. A very hardy variety which has incredible growth leaving everything else well behind. It is incredible to think this was a tiny seed in a packet four years ago.
The Eucalyptus Gunnii is not far behind. Gunnii is a popular UK garden tree, not as hardy as the Omeo but easily and cheaply sourced.
The hybrid willow would be next in rate of growth. This would be commercially harvested every 3 years as chip for biomass boilers but we wanted to see, if left, would it make decent logs. What we have found is that as the regrowth gets bigger, the stool struggles to support the weight and splits. For more detail please see the August update on the 2017 post
The same hybrid willow in its third year is perfect for making wood chunks and so it is likely that this will be the optimum time to harvest. Willow wood chunks really do make a for good biomass when dry. Fantastic for use in log boilers, good for the first load in a wood burner and the perfect fuel for pizza ovens where the gases flare off quickly and leave a wall of very hot charcoal that can be moved around easily.
We have some older Alder plants that we grew from seed but to keep up with demand for our Alder wood chunks (used primarily by local Polish and Latvian migrants for smoking meats and cheeses) we planted an acre of Alder in spring 2014 as 40cm bare rooted saplings.
Lastly and for reference the sycamore which was planted out from pots in the same year that the Eucalyptus seed arrived is doing will but just shows how far behind it is in terms of growth rate.