Juglans regia

Cold hardy Carpathian hybrid for severe climates, from Idaho. 1 1/4 inch nuts, thin shell, well sealed. Plump, light-colored kernels, excellent flavor. Young trees set heavy crops. 600 hours. Self fruitful. (Rootstock: NCB walnut.)

Late leafing and blooming, adapted to colder climate than Hartley or other popular English walnuts. Very large, well filled nut. 700 hours. Self-fruitful. (Rootstock: NCB walnut.)

Plantaerium

Developed by U.C. Davis. Heavy bearing (bears on lateral buds, not just terminals like Hartley). High quality light-colored nuts. Smaller tree than Hartley, good choice for backyard walnut. Fall harvest. 700 hours. Self-fruitful. (Rootstock: NCB …

Large, well-sealed nut, light brown kernel of excellent quality. 600 hours. Self-fruitful or pollenize with Hartley. (Rootstock: NCB walnut.)

Last English walnut to leaf out, less susceptible to spring frost damage. Very large tree, excellent shade. Fair production of well sealed, thin-shelled, high quality nuts. Pollenizer for Hartley. 700 hours. Self-fruitful. (Rootstock: NCB walnut.)

Plantaerium

Former long-time No. 1 walnut in California for its quality and dependability. Large, thin-shelled, well-sealed nut. Light-colored flavorful kernel. 700 hours. Self-fruitful. (Rootstock: NCB walnut.)

Cold hardy carpathian-type. Large, sweet, high quality kernel. Bears young and heavy. Vigorous tree. 700 hours. Self-fruitful. (Rootstock: NCB walnut.)

Plantaerium

The unique red kernel of Livermore Red has attracted quite a following among Farmers Market growers and specialty stores. The growth characteristics are similar to Chandler walnut. This U.C. Davis introduction is self-fruitful and requires 700 chill …

From the University of New Mexico. Winter hardy, late blooming. Large, well-sealed nuts are resistant to sunburn. Plump, light-colored kernels of good flavor. 700 hours. Self-fruitful. (Rootstock: NCB walnut.)

Very small tree, less than 2/3 the size of other varieties. Well-sealed nut, similar to Payne, has perhaps the finest-flavored kernel - winner of consumer taste tests. Widely adapted, excellent choice for home planting. 400 hours. Self fruitful. …

Best of the Santa Barbara-types, selected in the early 1900s. Adapted to mild-winter coastal climates of Southern California. Medium-sized nuts with fairly well-sealed thin shells. Light-colored plump kernel, mild flavor. Est. chilling requirement: …

Preferred variety for marginal soil and hottest climates. Large nut, plump kernels of light color. Highly resistant to sunburn. Fast-growing, bears young and heavy. 600 hours. Self-fruitful or pollenize with Chico for largest crops. (Rootstock: …