We make wine. We have about 16 vines, spread evenly over Marechal Foch and Leon Millot. These are 'modern' French hybrids that are mildew-resistant and early ripening (these traits go hand in hand, both come from the inbreeding of American grape species). The most common new hybrid is 'Regent', a German hybrid, that is by far the most common wine grape in these new Dutch vineyards (about 90 according to a recent count). All of these hybrids can successfully be grown for wine as far north as Denmark (and consequently also the south of Sweden, which actually is warmer than Denmark), so could be successfully grown in the UK as well...
Our 16 vines yield about 30 (to sometimes 45) liters of must, which translates to about 25 L of wine. Our current harvest (see my other post) has been pressed today, and is now sitting in carboys. This year BTW looks like a quality year. Slightly above average yield, very ripe, relatively high sugar content (for here), and great colour.
We're planning on moving house in the spring of 2010 -- there we'll have lots more room for vines, so all of the shoots that my SO has been nursing over the last three years or so will be planted; we're expecting that in a couple years time, we'll have about 250 L of wine annually, of our own grapes. We'll have to buy more carboys then...
Henk