Trebbiano Toscano is one of the oldest and most representative white grape varieties in central Italy, documented in Tuscany since at least the 16th century and also known by the synonyms Procanico, Biancone and Ugni Blanc. Its historical origins have been traced to various areas of central Italy, whilst cultivation has gradually spread to Tuscany, Umbria, Lazio, Marche, Emilia-Romagna and Abruzzo, and it is also grown to a significant extent in certain parts of France.
It is a vigorous, fertile variety with a medium-late ripening period. The leaf is large, often five-lobed, with a rough, undulating surface, a tomentose underside and a closed or almost closed petiole sinus. The bunch is medium to large, cylindrical, winged and generally quite loose; the berries, spherical and of medium size, have a thin, pruinose skin, yellowish-green in colour, which may take on golden or pinkish hues as they ripen.
The wine produced from Trebbiano Toscano generally displays a pale straw-yellow colour, sometimes with greenish highlights. On the nose, it offers delicate, fresh aromas with citrus, floral and fruity notes; on the palate, it is smooth and savoury, supported by pleasant acidity and a balanced structure. In its younger forms, it expresses immediacy and fragrance, whilst richer selections, those aged for longer periods or vintages intended for drying may develop greater complexity and longevity. It is also a traditional component of Tuscan and Umbrian Vin Santo.