Now there are over 50,000 trees in New Zealand, most of them infected with Tuber melanosporum. There are also a number of trees infected with either Tuber aestivum (burgundy truffle) or Tuber borchii (white truffle).
Partly following on from developments in France, but also as a consequence of successes with other new specialist crops “downunder”, there has been growing interest from New Zealand and Australia in establishing a truffle industry. Both countries have been growing black truffles for a number of years (and it is believed that many more truffles are grown in New Zealand than are found largely because of the scarcity of well trained dogs). The soil and climate conditions required by truffles and their host trees exist in both countries, and both have the high technical and management skills required to make black truffle growing a success (however it is still a young industry and ongoing research and developments are being made with varying degrees of success).
At present there have been about 50,000 trees planted on more than 150 sites in New Zealand, most of which have fewer than 600 trees. Plantations which are producing truffles can be found from Bay of Plenty to mid Canterbury. Because of the relatively small size of the existing truffieres it is difficult to extrapolate precise production data but yields equivalent to well over 50kg/hectare have already been achieved on some sites. About 30 truffieres are now being regularly harvested.