SelecTree: Tree Detail
Photo Locations: Arnold Arboretum - Boston, MA.
Tolerates hot climates, but needs deep soil and moderate moisture.
Native to Arizona, New Mexico, and Northern Mexico.
Juglans rupestris var. major
Additional Common Names
NOGAL, ARIZONA WALNUT
Erect or Spreading with a High Canopy.
Has Deciduous foliage.
Height: 30 - 50 feet.
Width: 30 - 50 feet.
Growth Rate: 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Pinnately Compound Odd, Medium Green, Bronze or Gold, Deciduous.
Flowers Inconspicuous. Flowers in Spring. Has separate male and female flowers on the same tree (monoecious).
Brown or Mostly Green Nut in Fleshy Husk, Large (1.50 - 3.00 inches), fruiting in Fall Edible.
Bark Black or Dark Brown, Furrowed or Ridged.
Shading Capacity Rated as Moderate in Leaf.
Shading Capacity Rated as Moderately Low out of Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 10 - 13.
USDA Hardiness Zones 6 - 7.
Exposure Full Sun.
Moist to Dry Soil.
Loam or Sand Texture.
Neutral to Highly Alkaline Soil pH.
Seaside Tolerance is Not Suited.
Pests & Disease Information
Resistant to Verticillium. Susceptible to Aphids, Sooty Mold.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium Strong.
Root Damage Potential Rated as Moderate.
Allergy Health Hazard.
Desirable Wildlife Plant.
Attracts Birds and Squirrels.
Cite this tree:
SelecTree. "Juglans major Tree Record." 1995-2020. Jan 27, 2020.
< https://selectree.calpoly.edu/tree-detail/juglans-major >