Summer truffles also fruit in autumn and occasionally appears mixed with lots of black truffle, ie between November and March, at different stages of maturation. At this time we have found small summer truffles from the beginning of its development, to truffles “aestivum type” with the characteristic white gleba, until “uncinatum type”, with the darker gleba.
On soil types, the summer and burgundy truffle prefer organic (especially uncinatum) and loamy soils (aestivum type can tolerate higher clay content), but generally share the soil texture of the black truffle.
Summer truffle is grown mainly associated with oak and holm oak in Spain and planted at low densities (200-300 trees / ha), while the Burgundy truffle, grows with oak, hazel and pine (nigra and sylvestris), but also lime and cedar, at densities between 600-1000 trees / ha (eg frames in meters 4×3, 5×3 or 5×2).
Because the summer truffle is less demanding in terms of weather and ecology, which is reflected in its broad geographical area and the great population genetic diversity, cultivation of summer truffle may have more successful and “easier” than the black truffle.