In the early 1800s, Isabella was widely planted in the North Atlantic and New England States where Catawba could not reliably ripen, but it fell out of favor after Concord was introduced. Isabella can withstand tropical...
Thomcord is highly productive with large clusters of medium-sized berries, but unlike Concord, it has adherent skin. The aromatic Labrusca flavor is similar to that of Concord but mellower.