berry variety in zone 6a
Duke highbush blueberry in zone 6a
Duke · Vaccinium corymbosum
- Zone
- 6a -10°F to -5°F
- Growing season
- 180 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 6a
Detailed guidance for this section is being prepared. Check back soon.
Common challenges in zone 6a
- ▸ Brown rot in stone fruit
- ▸ Japanese beetles
- ▸ Spring frost damage to peach buds
Modified care for zone 6a
Detailed guidance for this section is being prepared. Check back soon.
Duke in adjacent zones
Other highbush blueberry varieties for zone 6a
- Bluecrop
Tart-sweet, firm, balanced flavor with classic blueberry tang; the industry standard. Fresh eating, baking, fr…
- Chandler
Sweet, mild, very large berries (quarter-sized); fresh eating standout, prized for U-pick. Mid- to late-season…
- Elliott
Tart, firm, classic late-season flavor; the latest-ripening highbush, extends harvest into September. Stores e…
- Liberty
Rich, sweet-tart, complex flavor; outstanding fresh-eating quality, premium. Large firm berries store well. La…
- Patriot
Sweet-tart, large berries with rich flavor; fresh eating, baking, jam. Cold-hardiest commercial highbush, reli…
Frequently asked questions
- Will Duke highbush blueberry grow in zone 6a?
Yes. Duke is recommended for USDA zones 4b through 7a, which includes zone 6a.
- Are there enough chill hours in zone 6a?
Highbush Blueberry needs 800 to 1000 chill hours. Zone 6a typically meets this range; check local microclimate against historical chill totals to confirm.
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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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