Truffles need free-draining soil in order to thrive, therefore, drainage is an important consideration if your land tends to be waterlogged during rainfall.
Aspect, or direction of exposure, can be an important factor for truffle production. In France, many existing truffle orchards have a southern aspect because of the amount of sun it provides. However, a number of other factors, including prevailing wind direction, can also have an impact on the exact aspect that is favorable for truffle production in your region. Many successful truffle orchards are, in fact, on flat land. The key consideration when it comes to land is that it should not be too hilly, as you will need to drive equipment on the land.
Trees that harbor competing mycorrhiza species must be avoided and separated from the truffle trees either through a physical barrier or distance.