If I had to give you a one-sentence answer: choose Marquette if you want the easier dry red wine and live in Zone 4 or warmer; choose Frontenac if you are in Zone 3 or want maximum hardiness and don’t mind managing high acidity in the winery. Both are outstanding cold-hardy reds from the University of Minnesota (UMN), and many growers plant both and blend them together – which I’ll come back to at the end.
Marquette vs Frontenac: Side-by-Side Comparison
| Characteristic | Marquette | Frontenac |
|---|---|---|
| Breeder / Year | University of Minnesota, 2006 | University of Minnesota, 1996 |
| Cold Hardiness | ~−36°F (−38°C) fully dormant (UMN patent) | ~−35°F (−37°C) fully dormant |
| Hardiness Zone | USDA Zone 4 (reliable) | USDA Zone 3 – hardier by one zone |
| Ripening | Late September in MN (slightly earlier than Frontenac) | Late September into October – among the latest UMN varieties |
| Brix at Harvest | 22-26 °Brix | 22-25 °Brix |
| Total Acidity (TA) | ~11-12 g/L – high but manageable | 10-15 g/L – very high; MLF or deacidification usually needed |
| Tannin / Body | Good tannin, medium body | Lower tannin, bold fruit and color |
| Disease Resistance | Moderate (spray program needed) | Excellent downy mildew; moderate black rot/botrytis susceptibility (spray needed) |
| Wine Styles | Dry red: cherry, black pepper, earthy spice | Rosé, dry red, port-style; cherry/plum/black currant |
| Parentage | MN 1094 × Ravat 262 (Pinot Noir ancestry) | Vitis riparia × Landot 4511 |
Key Differences Worth Knowing
1. Hardiness: Frontenac Covers Zone 3
This is the biggest practical difference for northern growers. Frontenac is hardy to around -35°F (-37°C) and is reliably rated to USDA Zone 3 – which covers much of the Canadian prairies, northern Minnesota, northern Wisconsin, and northern New England. Marquette’s UMN plant patent lists hardiness to roughly -36°F (-38°C) when fully dormant, but in field trials and real-world plantings it is grown most reliably in Zone 4.
If you are in Zone 3 – or in a Zone 4 site with a particularly cold hollow, poor drainage, or late spring frost risk – Frontenac gives you a bigger safety margin. Both vines can lose buds in an extreme late-season cold snap, but Frontenac has the longer track record in the harshest sites. For Zone 4 and 5, either variety works well.
2. Acidity: Frontenac Demands More Cellar Work
Frontenac’s acidity is its most talked-about trait – and for good reason. Total acidity typically runs 10-15 g/L at harvest. That is very high for a table wine, and nearly every winemaker I have read about (and UMN extension guides themselves) recommends either malolactic fermentation (MLF), potassium bicarbonate deacidification, or both. When you manage that acidity well, Frontenac makes a vibrant, fresh dry red or a beautiful rosé. When you don’t, it can taste sharp and unpleasant.
Marquette’s TA of around 11-12 g/L is still high compared to warm-climate vinifera, but it is noticeably more balanced. Acid management is often still helpful – especially in a short, cool growing season – but for many home winemakers, Marquette’s juice is closer to “use as-is” territory. If you are newer to winemaking and want to keep cellar chemistry simple, that matters.
3. Ripening Season: Give Frontenac More Time
Marquette ripens in late September in Minnesota – sometimes mid-September in a warm year. Frontenac ripens a bit later, pushing into late September and October. In a short-season climate (Zone 3-4 with an early frost risk), that difference matters. Marquette gives you a slightly larger ripening window before a killing frost. If your first frost typically arrives in late September, Frontenac may need to be picked at lower Brix than you would like unless you have a frost-protected microclimate.
That said, Frontenac’s high natural acidity means it actually benefits from hanging a bit longer to soften – if your season allows it. In Zone 4 and warmer, it ripens just fine. The season-length concern is most acute in Zone 3.
4. Wine Style and Tannin
Marquette is the better choice if your goal is a structured dry red table wine with some aging potential. It has more tannin than Frontenac, and that tannin integrates into a medium-bodied wine with notes of cherry, black pepper, and earthy spice – qualities that remind some tasters of a lighter Pinot Noir or a northern-climate Cab Franc. UMN describes it as having “good tannin levels” for a hybrid, which is fairly rare.
Frontenac is more versatile in terms of wine styles precisely because it is lower in tannin but big in color and fruit. That makes it an excellent rosé grape – the juice runs off pink with minimal skin contact – and also a good candidate for port-style sweet wines where acidity becomes an asset rather than a problem. If you want to make dry red AND rosé AND a dessert wine from a single variety, Frontenac gives you that flexibility. Marquette does not lend itself as naturally to rosé or dessert styles.
5. Disease Resistance
Neither variety eliminates the need for a fungicide spray program – be clear-eyed about that before planting. Frontenac’s Achilles heel is black rot; it has excellent downy mildew resistance but is moderately susceptible to black rot, botrytis, and powdery mildew. Marquette has moderate overall disease resistance. In a wet summer, both need attention. The Cornell Integrated Pest Management program and your local extension office are the best sources for a region-specific spray schedule.
Grow Frontenac If… / Grow Marquette If…
- You are in USDA Zone 3 or a particularly exposed Zone 4 site
- You want to make rosé or port-style wine as well as red
- You want the first of the UMN series with the longest track record in extreme cold
- You are comfortable doing malolactic fermentation or deacidification in the winery
- Big, bold fruit flavor (cherry, plum, black currant) is a priority
- You are in Zone 4 or Zone 5 and want a reliable dry red
- You want more tannin and structure in your wine (medium-body, aging potential)
- You prefer simpler cellar management with less aggressive acid correction
- You want cherry/pepper/spice complexity – something closer to a northern Pinot Noir style
- A slightly earlier ripening window gives you a frost-safety buffer
And consider this: the best argument for choosing between them is often just growing both. Many home winemakers in the upper Midwest plant a few vines of each. They ripen close enough together to harvest within the same week, and blending Frontenac’s bold color and fruit with Marquette’s tannin and structure creates a wine that is better than either variety alone. If you have the space – even four to six vines of each – the blend option is worth it.
For more growing details on each variety, see our dedicated guides: Growing Marquette Grapes and Growing Frontenac Grapes. Both are part of the Cold-Hardy Grape Varieties overview.
Getting Your Vines
Both Marquette and Frontenac are UMN-patented varieties, which means the only way to get licensed propagations is through licensed nurseries. Do not buy from random online sellers who cannot document their source – you risk getting mislabeled or virus-infected vines. Reputable sources include Stark Bro’s Nurseries, St. Lawrence Nurseries, and nurseries listed on the UMN licensing page. You can also search for cold-hardy grape vines on Amazon to compare available stock – just make sure any vendor there is a licensed propagator.
Once you have your vines in hand, see our soil preparation and planting guide before you put them in the ground, and check our home winemaking instructions so you are ready for harvest day.
Frequently Asked Questions
Is Marquette or Frontenac hardier in cold winters?
Frontenac is the traditional Zone 3 choice, rated to around -35°F (-37°C). Marquette’s UMN plant patent lists -36°F (-38°C) but it is grown reliably in Zone 4. For the coldest sites, most growers default to Frontenac.
Which is easier to make wine from?
Marquette. Its acidity (typically 11-12 g/L TA) is high but less extreme than Frontenac’s (10-15 g/L). Frontenac almost always requires malolactic fermentation or chemical deacidification to make a pleasant dry red. Marquette is more forgiving in the cellar.
Can I grow both Marquette and Frontenac?
Yes, and many home winemakers do. They ripen within a week or two of each other, so harvest logistics are simple. Blending the two – Frontenac for fruit and color, Marquette for structure and tannin – can produce a more complex wine than either variety alone.
Which variety has better disease resistance?
Both need a spray program. Frontenac has excellent downy mildew resistance but is moderately susceptible to black rot, botrytis, and powdery mildew. Marquette has moderate overall disease resistance. Plan on fungicide applications for both in humid climates.
What styles of wine can I make from Frontenac?
Frontenac is versatile: rosé, dry red (with acid management), and port-style dessert wine are all common. Its bold fruit and high acidity make it one of the most style-flexible cold-hardy reds. Marquette is primarily suited to dry table reds.
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