ZonePlant
Thomas black walnut

nut variety in zone 7b

Thomas black walnut in zone 7b

Thomas · Juglans nigra

Zone
7b 5°F to 10°F
Growing season
220 days
Chill needed
700 to 1500 below 45°F
Days to harvest
150 to 200

The verdict

Detailed guidance for this section is being prepared. Check back soon.

About Thomas

Bold, intense, distinctively earthy black-walnut flavor; baking (cookies, cakes, ice cream), fudge. The heritage productive variety, large nuts with thicker shells than English walnut. Self-fertile but better with a partner.

Critical timing for zone 7b

Detailed guidance for this section is being prepared. Check back soon.

Common challenges in zone 7b

  • Cedar-apple rust pressure heavy in piedmont
  • Japanese beetles
  • Brown marmorated stink bug
  • Late summer disease pressure

Modified care for zone 7b

Detailed guidance for this section is being prepared. Check back soon.

Thomas in adjacent zones

Other black walnut varieties for zone 7b

Frequently asked questions

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Will Thomas black walnut grow in zone 7b?

Yes. Thomas is recommended for USDA zones 5a through 8a, which includes zone 7b.

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Are there enough chill hours in zone 7b?

Black Walnut needs 700 to 1500 chill hours. Zone 7b typically meets this range; check local microclimate against historical chill totals to confirm.

Image: "Juglans nigra nuts", by Gmihail at Serbian Wikipedia, via Wikimedia Commons, licensed under CC-BY Source.

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