![]() However, the methods have different levels of accuracy. If you do not have records of the plant material planted in your vineyards, there two ways to determine the cultivar and rootstock. A Master Gardener or local Extension office staff will not be able to definitively identify what cultivar you have growing in your garden/landscape due to concerns listed above, but they may give you some general idea of what type of grape it may be. Also, know what color it is when ripe, whether it has seeds or is seedless, and some other characteristics of the berry and flesh/skin texture. Having diseased or unhealthy plant tissue makes it difficult for cultivar identification. Make sure you have photos of your plant with ripe, disease-free fruit. However, make sure that you have clear photos that identify the plant parts (see Ampelography below). Specifically inquire with the Master Gardener Help Desk, as they may be able to further assist in cultivar identification based on their experience and other local resources. If you want help identifying your grapevine, contact your county Extension office for assistance.Therefore, if you suspect that your grapevine is decades old, it may be one of the more traditional cultivars available through garden centers. Keep in mind that some cultivars that are available now were not available decades ago.Wine and Juice Grape Varieties for Cool Climates. ![]() Table Grape Varieties for Cool Climates.To learn more about different wine, juice and table grape varieties, check out the following online resources for descriptions and photos: Some are crosses between American Vitis species and European grape species ( Vitis vinifera). These may be used for table grapes (fresh eating), juice (or wine), or jams/jellies. Many grapes for the home garden are American grape varieties, as they are more disease resistant.Below are additional resources that provide details on such varieties. You can search garden centers and seed and plant catalogs online to determine what is distributed to homeowners. Therefore, we suggest that you begin with the most common grape varieties sold to homeowners. However, it is difficult to narrow down your choice of cultivars to begin searching online databases. If you want to identify the variety of a grapevine in your home garden, you can use the resources listed below for commercial growers. If the plant is diseased or unhealthy, it makes it even more difficult for visual identification. There are thousands of grapevine cultivars grown worldwide, and it is difficult to identify grapevines based on photos or plant samples submitted to or dropped off at an Extension office. For example, Petit Verdot, Malbec, and Carménère are also allowed in red Bordeaux, but for simplicity’s sake the overview is showing the more common grape varieties only.Terminology note: cultivar or variety are used in viticulture Note that this overview only includes some of Europe’s main wine regions and that it only shows the main grape varieties for each region. So the overview below provides an idea of what main grape varieties you can expect for some of the major European wine regions. Instead, you will have to rely on the region that the wine came from to derive what grape variety or varieties were used. As mentioned in “ To blend or not to blend“, although many European winemakers have started putting the grape varieties used to make their wines on many of their entry-level bottlings, most wine labels won’t refer to those grape varieties once you get past entry-level.
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