Persian walnut

Juglans regia

tree☀️ full sun💧💧 moderate waterZone 6a – Zone 7b

A large deciduous tree prized for its edible walnuts and attractive spreading canopy. It produces catkins in spring and bears hard-shelled nuts in fall.

Overview

Form: Rounded
Growth Rate: moderate
Size: 40–60′ tall × 40–60′ wide
Dormancy: deciduous

Tolerances & Soil

moderate

Zone 6aZone 7b

1471013

ColderWarmer

pH Range

67.5

7.0

3.556.589

Soil Texture

Medium, Fine

Seasonality

Bloom Season

Harvest Season

Season of Interest

SpringFall

Canopy

The tallest trees that form the overstory.

Succession Role

mid successionalclimax

Native Range

Central Asia and Iran

Function & Care

biomass/mulchdynamic accumulatorediblewildlife benefitwindbreak

Edible Parts

nutseed

Establishment & Care

Establishment: moderate
Maintenance: low
Years to Bearing: 5 years
Propagation: seed, grafting

Companion Planting

Avoid near

tomato

Solanum lycopersicum

Persian walnut also produces juglone compounds that inhibit growth in susceptible plants though typically in lower concentrations than black walnut.