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A picture of a Walnut Trees

Walnut Trees

Juglans spp.

Also known as

Walnut, Nogal, Jupiter's Nuts

Juglans major Morton by Bruce Marlin (CC BY 3.0)

Full Sun
Half-hardy

10a

USDA zone

-1°C

Minimum temperature

Expected size

Height
Spread

Max

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Walnut Trees

A photo of Walnut Trees
A photo of Walnut Trees
A photo of Walnut Trees
A photo of Walnut Trees

Walnut Trees Overview

Juglans is a genus containing 21 accepted species of deciduous trees in the Juglandaceae family native to Eurasia, Canada and the Americas. They are commonly known as Walnut Trees or just Walnut. Species have pinnately divided leaves and after flowering, with conspicuous male catkins and smaller female flowers, they produce edible nuts. They are cultivated as ornamental trees usually in larger gardens and parkland but can affect understory and nearby vegetation as they produce compounds toxic to other plants.

Common problems with Walnut Trees

How to propagate Walnut Trees

Seed

Propagation is by seeds when ripe in the autumn.

Other uses of Walnut Trees

Grown for their foliage, stately habit and, in some species, edible nuts (walnuts).