Suffolk Red Seedless is a cold-hardy table grape developed at Cornell University's New York State Agricultural Experiment Station, combining Vitis labrusca and Vitis vinifera genetics to deliver seedless berries with a distinctive spicy undertone and remarkably tender flesh. Bred for home gardeners in hardiness zones 5 through 5, this hybrid captures the best of two grape species, yielding sweet, flavorful clusters without the seeds that typically require patience during eating. The melt-in-your-mouth texture and complex flavor profile make it a standout choice for fresh eating straight from the vine.
—
—
5-5
?in H x ?in W
—
High
Hover over chart points for details
This grape emerged from deliberate breeding work that sought to combine cold hardiness with the refined flavor and tender texture of wine grapes. The spicy undertone sets it apart from typical seedless table varieties, adding an unexpected layer to the sweetness rather than simple sugar. Its seedless nature and ability to thrive in zone 5 climates make it accessible to gardeners in regions where most premium table grapes cannot survive.
Suffolk Red Seedless thrives as a fresh eating grape, enjoyed straight from the vine where its tender flesh and sweet, spicy flavor shine best. The seedless berries make grazing directly from the cluster a genuine pleasure without the interruption of spitting seeds. It's equally suited to the bowl on the kitchen counter or the lunch box, wherever you want an elegant, seedless grape that tastes far more sophisticated than typical supermarket varieties.
No timeline data available yet for this variety.
Plant dormant grapevines in early spring or fall, positioning the graft union (if grafted) 2 inches below soil level in zone 5 gardens. Space vines 8 feet apart along the trellis or arbor structure, accounting for vigorous growth. Ensure the planting site has excellent drainage and receives full sun exposure.
Harvest when berries reach full color, a deep red, and taste sweet with that characteristic spicy undertone. Unlike many grapes, Suffolk Red Seedless berries do not ripen further after picking, so wait for full ripeness on the vine before cutting clusters. Berries should feel slightly soft when squeezed gently; this indicates peak eating quality and optimal sugar development.
Prune Suffolk Red Seedless during late winter dormancy, removing dead, diseased, or crossing canes and training the remaining shoots along your trellis structure. Thin fruit clusters in early summer if berries appear crowded, removing weaker clusters to concentrate energy into larger, sweeter fruit. Summer pruning to remove excess foliage helps sunlight reach ripening berries and improves air circulation.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Suffolk Red Seedless arrived through systematic plant breeding at Cornell University's New York State Agricultural Experiment Station, where plant scientists crossed Vitis labrusca, the cold-hardy American species, with Vitis vinifera, the refined wine grape species. This deliberate hybrid combines the winter hardiness necessary for northern gardens with the superior flavor and tender berry texture prized by fruit lovers. The result is a modern cultivar engineered specifically for home gardeners seeking a premium-quality seedless grape they could actually grow in colder climates.”