JuiceAlistair, here's a little info. on Black Hamburg; MUSCAT HAMBURG: According to the Geilweilerhof (Genres) database, see above, this variety was derived from a Schiava...
The direct answer is 'yes' - buttuming you have reasonable soil and the vines are watered. I've seen numerous grapevines trained up trellises, poles, etc.
The real question then becomes more difficult to answer; will they produce high quality wine grapes in sufficient quanbreasty for my winemaking needs?
dry weight equivalent of sugar in juiceCidersugar - I make beer and get very good carbonation with 3-4 cup sugar per 5 gallons. Since you want lower carbonation that a typical beer try 1-2 cup sugar...
Most vineyards are now pruning back quite short - 3 feet or so. When I visited the famous Burgundian vineyards two summers ago, I was quite surprised at how low they prune their vines - a couple feet high when dormant.The question here is - will having such a long stalk affect the quality of your grapes? Honestly, I don't know.
Quick & Easy Pistol Grip Bottle FillerMike, Sorry about the delay, but I've had-am having ISP issues on this end. Yes, I went and photoed the filler gun, but don't have a place to post it...
The sedond issue becomes canopy management. Quality grapes require pretty careful canaopy management such that they receive sufficient sunlight, yet sufficient shade such that they don;t burn. Sufficient airflow. And, very important, the canopy needs to be managed (leaf pulling or hedging) to maintain appropriate balance of leaf versus fruit. These issues DO directly affect grape quality. In a "normal" vineyard, these are managed with trellises and accessible canopy for leaf pulling or hedging. If your vines are on your roof - can you set up trellis wires to control cane growth? Can you access the canopy?
Last thought - can you get enough vines for reasonable production? I have 150 vines spaced in ten rows of about 15 each - stalks come to about waist high before splitting into two cordons (relatively high - but easier to work on). Vines are spaced about 6 feet apart - producing, on average, about 7 to 8 pounds of grape per vine. That isn;t a very big yield - how many pounds would you need for your roofline to produce?
