A picture of a Walnut

Walnut

Juglans spp.

Also known as

Jupiter's nuts

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

A photo of Walnut
Juglans major Morton
Juglans flower female 20050526 064 part
Noix en automne - Juglans regia - 016

Walnut Overview

A genus containing 21 accepted species of deciduous trees in the Juglandaceae family native to Eurasia, Canada and the Americas. 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

How to propagate Walnut

Seed

Propagation is by seeds when ripe in the autumn.

Other uses of Walnut

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