ZonePlant
Jefferson hazelnut

nut variety in zone 5a

Jefferson hazelnut in zone 5a

Jefferson · Corylus species and hybrids

Zone
5a -20°F to -15°F
Growing season
150 days
Chill needed
800 to 1500 below 45°F
Days to harvest
100 to 130

The verdict

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

About Jefferson

Sweet, rich, buttery; fresh, baking, confections, butter. Large round nuts. The Oregon State release that resists Eastern Filbert Blight, the standard for new commercial plantings. Pair with Eta or Theta as pollinizer.

Critical timing for zone 5a

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

Common challenges in zone 5a

  • ▸ Fire blight in pears
  • ▸ Cedar-apple rust
  • ▸ Late spring frosts

Disease resistance

Documented resistance for Jefferson; useful for low-spray management in zone 5a.

  • eastern-filbert-blight

Modified care for zone 5a

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

Jefferson in adjacent zones

Other hazelnut varieties for zone 5a

Frequently asked questions

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Will Jefferson hazelnut grow in zone 5a?

Yes. Jefferson is recommended for USDA zones 5a through 8a, which includes zone 5a.

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Are there enough chill hours in zone 5a?

Hazelnut needs 800 to 1500 chill hours. Zone 5a typically meets this range; check local microclimate against historical chill totals to confirm.

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Does Jefferson resist regional diseases in zone 5a?

Jefferson carries documented resistance to eastern-filbert-blight, which can simplify low-spray management in zone 5a.

Image: "Hazelnuts", by Fir0002 at English Wikipedia, via Wikimedia Commons, licensed under CC-BY Source.

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