khmark7
Posts: 11413
Joined: 7/6/2008 From: Chicago suburbs Status: offline
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My vines are all types, so i've seen the differences between vigorous new vines and finicky vinifera vines. Soil has a lot to do with crop load and vine growth. My vinifera simply grew too much, even in heavy clay, and the clusters were small, so perhaps 1 lbs per vine? A proper trellis for them would have helped, but maybe someday in a different yard that is possible. My newer vines, mostly newer varietals can really over crop, so you have to keep them under control. 10-15 lbs per vine is very reasonable, but they grow best in rich soils and can handle the extra crop load. I typically go for 2 clusters per shoot, and try and keep the number of shoots under 40. Some vines have large clusters, and others smaller, so think between 1/6 lbs up to 1/3 lbs each cluster You have to understand each varietal and the crop load it can handle. This year my vines made a palatable rose and white wine. Nothing special, but considering i am downtown in the middle of the city i am proud. The downside with rose wines is the poor yield from the grapes - almost 20 lbs grapes to 1 gallon of wine.
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"a rogue Provence rouge of unknown provenance." author grafstrb
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