In the Colli Euganei area, cultivation of chestnut trees for their fruits dates back to the Roman age, as testified by Pliny (1st century b.C.), who wrote that Corelio from Este taught the Neapolitans how to graft chestnuts. Chestnut trees grow on siliceous soil, like those deriving from volcanic rocks in Colli Euganei, and mostly cover the cooler, north-facing slopes, although they are present in other areas, too.