Juglans regia
Persian Walnut

Family:

Juglandaceae (Walnut Family) 10

Genus:

Juglans (Walnut Butternut) 3

Plant Type:

Tree 557

Growth Forms:

Spreading / Branched 76

Hardiness:

USDA Zone 5 234

Deciduous / Evergreen:

Deciduous 794

Flower Notes:

Green (Monoecious catkins; not ornamentally important)

Foliage Notes:

Green (Green pinnately compound summer foliage); Yellow (Poor yellowish-brown fall color)

Fruit Notes:

Brown (Edible, thin-shelled 1.5-2" dia. walnut that matures in the fall)

Ultimate Height:

40-60 feet

Ultimate Spread:

40-60 feet

Light Requirements:

Soil Notes:

Must be well-drained

Diagnostic Characteristics:

Leaves (up to 16" long) are alternate, odd-pinnate compound with 5-9 oblong, glabrous leaflets each 2-5" long. Bark is silverish with large, flat ridges.

Special Characteristics:

Food/Edible 80

Notable Texture 277

Park Tree 38

Additional Information

Juglans regia is a large, rounded, spreading tree that produces the walnuts frequently seen in stores. It may take up to 20 years for this tree to become mature enough to produce a decent-sized crop of nuts. Long tap root makes transplanting difficult.