Hardy Edibles

Juglandaceae

iron walnut

Juglans sigillata

iron walnut

Photo: Kristof Zyskowski & Yulia Bereshpolova — CC BY 2.0 · source

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Survives zone 6 through 9

Walnut — excellent; butternut rich and oily.

Hardiness
Zone 6 to 9
Habit
Tree
Edible part
Nut
Ripens
Sept–Oct
Mature size
Large tree — NOT containerable
Light
Full sun
Soil pH
6.0–7.5 (near-neutral; lime-tolerant)
Environment
Montane
Status
Cultivated
Years to fruit
5–10 yrs
Pollination
Monoecious but HETERODICHOGAMOUS — a 2nd cultivar of the opposite type greatly improves set