Can I grow grapes, lavender or other crops between the rows of trees before they begin producing truffles?
Yes, truffle trees are often planted in old vineyards and lavender fields and many other crops would also be compatible. However, the truffles live in areas with dry summers and are not accustomed to constant moisture availability throughout the summer. Some irrigation can be beneficial to truffles, but too much may shift the competitive balance toward their competitors with a consequent decline in truffle production. Also, truffles typically grow in somewhat low productivity soils and too much fertilization may similarly put them at a competitive disadvantage against competing fungi. So, any other crops planted between the rows of truffle trees should require no more moisture or fertilization than the truffles and they should be able to tolerate the high pH conditions required by the truffles.