Sheboygan is a Wisconsin heirloom paste tomato with genuine roots in immigrant gardening tradition, first cultivated by Lithuanian growers in the early 1900s. These medium, 4 to 6 inch fruits have a distinctive pinkish-red exterior and meaty interior, ripening in about 80 days from transplant. The indeterminate vines grow tall, reaching 3 to 8 feet, and thrive in full sun across hardiness zones 2 through 11, making them surprisingly cold-tolerant for a tomato. What sets Sheboygan apart is its purpose-bred succulence for canning and sauce-making, though the balanced sweetness and acidity make it equally rewarding eaten fresh from the vine.
24
Full Sun
Moderate
2-11
96in H x ?in W
—
High
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These juicy, ovular tomatoes were developed over generations specifically for their cooking character, balancing the meaty flesh that sauce-makers crave with enough natural acid to keep things lively. The smooth pinkish-red skin signals ripeness clearly, and at 6 ounces each, they're substantial enough to make your sauce effort feel worthwhile. Grown indeterminately, they'll keep producing through the season in most regions, and their natural disease resistances to Fusarium Wilt, Verticillium Wilt, and Late Blight mean fewer headaches compared to many other paste varieties.
These tomatoes shine in the kitchen as a canning and sauce tomato, where their meaty flesh and balanced acid-to-sugar ratio make them exceptionally suited for long-cooked preparations. Home gardeners use them for tomato paste, marinara, and traditional Italian-style sauces where the concentrated flavor develops beautifully through reduction. Despite their breeding for processing, the natural sweetness makes them entirely pleasant eaten fresh, sliced warm from the vine or added to salads where their succulence adds real character.
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Start seeds indoors 6 to 8 weeks before your last spring frost, sowing at a depth of 1/4 inch in warm soil around 70 to 80 degrees Fahrenheit. Keep soil moist but not waterlogged, and provide bright light once seedlings emerge to prevent legginess.
Transplant outdoors after the last frost date has passed and nighttime temperatures consistently stay above 55 degrees Fahrenheit. Harden seedlings off over 7 to 10 days by gradually exposing them to outdoor conditions. Space plants 24 inches apart with rows 36 inches apart, burying them slightly deeper than they grew in pots to encourage stronger root development.
Pick Sheboygan tomatoes when they reach full color (a deep pinkish-red) and yield slightly to gentle pressure, typically 80 days after transplanting. For fresh eating, harvest fully ripe fruits in the morning when they're still cool and firm. For sauce and canning, you can harvest them slightly less ripe if you're processing immediately, as the cooking process will develop the full flavor. Twist or gently pull the fruit from the vine; ripe tomatoes should detach cleanly with a slight rotation.
As an indeterminate variety, Sheboygan will benefit from pruning out suckers (shoots that emerge between the main stem and branches) to channel energy into fruit production rather than excessive foliage. Prune from the bottom up as the plant grows, removing any leaves in contact with soil or showing disease. Maintain the main stem and 1 to 2 strong secondary stems for best airflow and fruit ripening.
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“Sheboygan carries the fingerprints of Wisconsin's Lithuanian immigrant community, who brought seeds and growing traditions from the old country in the early 1900s. These gardeners, settling around the Sheboygan area, selected and replanted seeds from the tomatoes that performed best in the Great Lakes climate, gradually shaping a variety uniquely suited to shorter growing seasons and variable weather. Over generations, the variety became embedded in local food culture, passed hand to hand through Lithuanian American families and eventually documented by seed savers and heirloom catalogs. Its survival represents not just a plant, but a cultural memory preserved in living seed.”