We can't call this the Vidalia onion since it is not grown in the Vidalia area but this is one of the hybrid varieties that is approved to be planted in Vidalia, Georgia. Lat year we shipped over 50 million yellow granex onion transplants to the Vidalia growers This cross between the 1015Y and the old Bermuda onions produces semi-flat onions with rounded shoulders. Unfortunately, what makes an onion sweet is the same as what makes an onion not store well: high water content. This variety won't store for much more than one month but it is as sweet as an apple. Hybrid, stores approximately one month, matures in 100 days, semi-flat, yellow.