This presents opportunities, but also great uncertainties. Thus, the seed provenance of a particular species can influence cold tolerance, vigour and form of trees, often very markedly. Furthermore, growth in the wild is frequently a poor predictor of growth in planted stands. Thus, growth of trials and of specimen trees can only be interpreted with knowledge and understanding of the provenance of the seed used. Poor growth in past plantings is not necessarily an indicator of the potential of a species. Good growth may only be reproducible with plants from genetically-similar seed.
For any location for which there is no history of growing eucalypts or other unfamiliar species, the suitability and yield potential of particular species cannot be predicted with certainty. Therefore it is prudent to trial several species over several years before selecting particular species for larger-scale planting.
The seed sources of the eucalyptus planting stock supplied by Prima Bio have been selected as ones likely to be well-adapted for woodfuel production in the British Isles.
The following section discusses the potential for these Eucalyptus species:
And the species potential for Nothofagus