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Frontenac Grape

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A cold-hardy wine grape. Developed at the University of Minnesota, this blue-black grape can withstand cold temperatures as low as -30°F and still produce grapes for making a good quality wine with a pleasant cherry aroma. Frontenac has been a consistent heavy producer and vigorous grape variety with a good resistance to powdery mildew and near-immunity to downy mildew. Grapes are produced on medium to large clusters that are usually slightly loose resulting in minimal berry splitting and bunch rot. Ripens in late August to mid-September. Self-pollinating.


Bloom Color White
Fruit Color Blue
Fruit Size Small
Pollination Self-pollinating
Ripens/Harvest Late August-mid September
Shade/Sun Full Sun
Soil Composition Loamy, Sandy
Soil Moisture Well Drained - Average Moistness
Soil pH Level 5.5 - 6.5
Taste Full
Texture Firm
Years to Bear 2 - 4
Zone Range 3 - 7

Zone Compatibility

This Variety's Zone Range 3 - 7
My Hardiness Zone ?
The USDA hardiness zones offer a guide to varieties that will grow well in certain climates. Each zone corresponds to the minimum winter temperatures experienced in a given area. Make sure that your hardiness zone lies within the zone compatability range of this variety before ordering.

Pollination Requirements

This variety is self pollinating.

In many cases, you may still want to plant pollinating partners to increase the size of your crops, but with self-pollinating varieties doing so is optional. You'll get fruit with only one plant!

Tools & Supplies

Having the proper tools and supplies when growing your own can make the difference between a good harvest and a great harvest! Here's a list that our experts recommend for this variety.


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