Carpathian Walnut, English Walnut, Persian Walnut
Juglans regia

Family: Juglandaceae (joo-glan-DAY-see-ee) (Info)
Genus: Juglans (JOO-glanz) (Info)
Species: regia (REE-jee-uh) (Info)


Edible Fruits and Nuts



over 40 ft. (12 m)


over 40 ft. (12 m)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Pale Green

Bloom Time:

Mid Spring



Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Malibu, California

Oak View, California

Lenore, Idaho

Noblesville, Indiana (2 reports)

Owosso, Michigan

Jayess, Mississippi

Apple Creek, Ohio

Portland, Oregon

Arlington, Texas

Tomah, Wisconsin

show all

Gardeners' Notes:


On Sep 19, 2007, prilley from Tomah, WI wrote:

The tree is approxiamtely 16 years olsd from a seedling. It is finally starting to bear, but I have only one tree. I had to wrap the one nut in mesh to prevent tne grey and black squirrels from getting it. The nuts look amazingly like an English walnut. Tree is hardy here in the 4b zone. I wish that I had planted numerous ones now!


On Sep 25, 2006, gunworks from Noblesville, IN wrote:

After six years of growth Fall of 2006 was first year for limited production (six pods on three trees). Trees have attained height of 15-18 ft. with trunks 6-9" in diameter. Pods began to spit the third week in September. Nuts have been collected and need to dry out/cure as they have not yet developed full flavor. Trees are easy to grow and produce waxy dark green foilage, ideal for shade. Must prune suckers early on and then only as needed.