The truffle is a fungus that lives in perfect symbiosis with different tree species, including the oak. This is why Robin Nurseries produces different truffle oak plants. Our mycorrhizal truffle oaks are raised, labeled, numbered and vintage under INRA control. This guarantees superior quality, an excellent recovery rate and an increased yield. Among the many varieties of oak, we recommend the six most suitable for truffle growing:
♦ the turkey oak (Quercus cerris) mycorrhized with black truffle or Burgundy truffle
♦ the evergreen oak (Quercus ilex) inoculated with black truffle or summer truffle
♦ the pedunculate oak (Quercus pedonculata) which can be associated with white truffle, to the burgundy truffle or the black truffle
♦ the pubescent oak (Quercus pubescens) which is suitable for mycorrhization with all types of truffles including the famous white truffle
♦ the kermes oak (Quercus coccifera) which can be mycorrhized by the black truffle
♦ the sessile oak (Quercus sessiliflora) inoculated with Burgundy truffle
Truffle oak plants ready for planting
Truffle production from an oak plant
Oak accommodates and lives naturally in symbiosis with the truffle. It is the queen species of truffle growing and for good reason : It suits any type of non-acidic soil (from very poor to good, dry, preferably calcareous and well-drained). Robust, it tolerates cold while thriving fully in full sun.
Ability of mycorrhizal oak to produce truffles
Truffle tree par excellence, the oak is undemanding in water, thrives on a very wide variety of soils even very poor ones, but only develops fully in warmth and sunlight. It thrives even on poor and superficial soils thanks to the extreme density of its root system, which is a real asset for truffle production. Naturally "armed" against rodents, it requires less protection than other species. In addition, oak has no particular phytosanitary sensitivity.
Pubescens oak, evergreen oak, turkey oak... Which one to choose in truffle farming?
The oaks are the emblematic trees of truffle growing (it is on these species that the first mycorrhized plants were developed in 1974 by the INRA). The choice between the different varieties of oaks is made according to the desired characteristics. The parameters to be taken into consideration include
- exposure: maximum exposure for the pubescent oak and the kermes oak, full sun to half-shade for the pedunculate oak, the evergreen oak and the turkey oak, half-shade for the sessile oak.
- altitude : up to 1600m for the pubescent oak, 1400m for the turkey oak, 1200m for the pedunculate oak and the evergreen oak, rarely above 600m for the kermes oak.
- the need for water : good tolerance to drought (apart from the recovery phase) for the evergreen oak, the downy oak, the kermes oak and the turkey oak, contrary to the pedunculate oak which does not tolerate aridity well.
- hardiness: up to -25°C for the turkey oak and the pubescent oak, -15°C for the evergreen oak and the pedunculate oak, -12°C for the kermes oak.
What truffles to grow from an oak plant
The growth cycle of the oak, which requires heat and light, naturally brings it closer to the ideal conditions for the cultivation of the black truffle (tuber melanosporum) and the production of summer truffle (tuber aestivum). However, a simple increase in its planting density allows to favor shade and humidity, which generates the right conditions for the Burgundy truffle farming (tuber uncinatum). Finally, note that controlled mycorrhization also makes pedunculate and pubescent oaks very good hosts for the Italian white truffle. So to summarize: the oak is the truffle plant able to produce the four varieties of truffles.
In addition to truffle oaks, Robin Nurseries offers a wide range of plants for truffle growing. If you are not sure which truffle variety and tree species are best suited to your land, contact our experts. They will be able to advise you and guide you in the choice of your truffle plants, their storage, planting and maintenance.