ZonePlant
Duke highbush blueberry

berry variety in zone 4b

Duke highbush blueberry in zone 4b

Duke · Vaccinium corymbosum

Zone
4b -25°F to -20°F
Growing season
130 days
Chill needed
800 to 1000 below 45°F
Days to harvest
60 to 90

The verdict

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

About Duke

Mild-sweet, firm with crisp texture; clean flavor, less complex than Bluecrop but holds quality on the bush. Early-season, machine-harvest favorite. Frost-tolerant bloom.

Critical timing for zone 4b

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

Common challenges in zone 4b

  • ▸ Spring frost timing
  • ▸ Apple scab pressure
  • ▸ Cane berry winter dieback

Modified care for zone 4b

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

Duke in adjacent zones

Other highbush blueberry varieties for zone 4b

Frequently asked questions

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Will Duke highbush blueberry grow in zone 4b?

Yes. Duke is recommended for USDA zones 4b through 7a, which includes zone 4b.

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Are there enough chill hours in zone 4b?

Highbush Blueberry needs 800 to 1000 chill hours. Zone 4b typically meets this range; check local microclimate against historical chill totals to confirm.

Image: "2018-06-01 (134) Unripe Vaccinium corymbosum (northern highbush blueberry) at Bichlhäusl in Frankenfels, Austria", by GT1976, via Wikimedia Commons, licensed under CC-BY Source.

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