Waltham Butternut

Waltham Butternut produces bell-shaped fruit with a smooth, tan to pale-orange rind and a straight, cylindrical neck holding a small seed cavity. Fruits are documented at roughly seven to twelve inches long and three to six pounds. The dense, dry flesh is a deep yellow-orange to bright orange, prized for a sweet, nutty flavor that turns creamy and tender when cooked. Its flesh also carries notably higher vitamin A content than hubbard or acorn squash.

Waltham Butternut is grown for classic winter squash cookery, roasted, baked, or pureed into soup. Its flesh cooks tender and flavorful, and the fruit keeps well in storage for months after harvest, making it a reliable choice for winter eating.

Vines produce about four to five fruits per plant, supported by solid stems that resist squash vine borers. This resistance makes Waltham Butternut a preferred keeper in mild-winter regions from Zone 6 southward. In cooler summers farther north, however, fruit can fail to ripen fully, though the variety remains one of the best-selling butternuts overall.

Waltham Butternut was bred by the Massachusetts Agricultural Extension Service, crossing the 1956 New Hampshire Butternut developed by Yaeger and Meader with a neckless moschata squash from Turkey. Bob Young of Waltham, Massachusetts introduced the resulting selection, and it won an All-America Selections award in 1970. Developed during the 1960s, it has since become a staple of home gardens and market growers.