The Wine Grapes of Maryland

We recently posted on The Wine Grapes of Virginia based on a discussion of Viognier being named the Signature Grape of Virginia. We were then asked to provide the same information for Maryland which, due to its smaller number of wineries, was easier to compile. This data is obviously not official and does not designate the appellation where the grapes were grown; just the grape varieties that were used to craft Maryland wines. The first four were not surprising, and probably not Vidal either as seen in Virginia. However the sixth, Riesling, was a surprise. I wonder if the grapes are harvested in state or sourced from the Finger Lakes.

24 Cabernet Sauvignon
24 Chardonnay
22 Merlot
22 Cabernet Franc
18 Vidal Blanc
15 Riesling
13 Chambourcin
12 Seyval Blanc
10 Pinot Grigio/Gris
9 Zinfandel
8 Syrah
8 Sauvignon Blanc
6 Pinot Noir
6 Traminette
5 Sangiovese
5 Gewürztraminer
4 Chancellor
4 Malbec
4 Viognier
4 Vignole
3 Cayuga
3 Concord
3 Mead
3 Petit Verdot
3 Barbera
2 Albarino
2 Muscat
2 Niagara
2 Montepulciano
2 Dolcetto
2 Chenin Blanc
2 Traminer
1 T'ej
1 Tocai Friulano
1 Vincent
1 Symphony
1 Reliance
1 Colombard
1 Malvasia
1 Marechal Foch
1 Dutchess
1 Fredonia
1 Gamay
1 Gamay Noir
1 Muller-Thurgau
1 Melody
1 Norton
1 Pinot Blanc
1 Blaufrankisch
1 Chardonel
1 Catawba
1 Grenache
1 Gruner Veltliner
1 Isabella
1 Johannisberg Riesling
1 Landot
1 Landot Noir
1 Leon Millot