St. Pepin is a modern hybrid variety of wine grape, mostly grown in North America.
It has the benefits of early ripening and when hardened properly in the fall it is winter hardy to at least −25 °F (−32 °C).
[1] St. Pepin was bred by Elmer Swenson c. 1970 and released in 1986.
[2] It is a hybrid of the male Seyval blanc crossed to a seedling of Minnesota 78 by Seibel 1000 (a.k.a.
Unlike most modern grapes, it is a pistillate female and so needs to be planted next to male vines from a close sibling variety to achieve pollination.