RARE GRAPE VARIETAL RESOURCE

https://www.vivc.de/index.php?r=passport%2Fview&id=2753

AI Overview

There are no commercial wineries that grow or produce wine from Colagiovanni Bianca in Italy.

While the obscure white grape is officially registered in the Vitis International Variety Catalogue as an Italian variety, it is not cultivated for commercial wine production. It exists primarily as a genetic accession in ampelographic collections or experimental ampelography vineyards