I'm looking to start a small vineyard in the spring, with hopes of growing
it into a much larger vineyard over time. Soil prep is beginning this fall
when the backhoe arrives to dig the planting trenches. The purpose of the
vineyard will be 100% wine making. As I review supplier catelogs, I'm
overwhelmed by the # of different varieties. Where can I find good
information on the nature of particular varieties, and which will perform
best in my area?

For those willing to offer advice, my farm is located in central
Pennslyvania, in USDA zone 6. It sits along the Susquehanna River, so
benefits from the river's protection from early frosts. Good slopes,
southern exposure, etc.

Thanks in advance for any advice,

Paul