berry variety in zone 7a
Duke highbush blueberry in zone 7a
Duke · Vaccinium corymbosum
- Zone
- 7a 0°F to 5°F
- Growing season
- 210 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 7a
Detailed guidance for this section is being prepared. Check back soon.
Common challenges in zone 7a
- ▸ Cedar-apple rust
- ▸ Brown rot
- ▸ Fire blight
- ▸ High humidity disease pressure
Modified care for zone 7a
Detailed guidance for this section is being prepared. Check back soon.
Duke in adjacent zones
Other highbush blueberry varieties for zone 7a
- 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…
Frequently asked questions
- Will Duke highbush blueberry grow in zone 7a?
Yes. Duke is recommended for USDA zones 4b through 7a, which includes zone 7a.
- Are there enough chill hours in zone 7a?
Highbush Blueberry needs 800 to 1000 chill hours. Zone 7a 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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