berry variety
Duke
Highbush Blueberry · Vaccinium corymbosum
USDA hardiness range
- Zones
- 4b–7a
- Chill hours
- 800 to 1000 below 45°F
- Days to harvest
- 60 to 90
- Sun
- Full
- Water
- Moderate
- Lifespan
- 30 to 50 years
At a glance
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.
Growing Duke
Detailed guidance for this section is being prepared. Check back soon.
Flavor, texture, and use
Detailed guidance for this section is being prepared. Check back soon.
Growing notes
Detailed guidance for this section is being prepared. Check back soon.
Duke by zone
Zone-specific suitability, frost timing, and adjacent-zone notes.
Other highbush blueberry varieties
5 sibling cultivars profiled on ZonePlant.
- 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
- What zones does the Duke highbush blueberry grow in?
Duke grows in USDA zones 4b through 7a.
- How does Duke compare to other highbush blueberry varieties?
Duke is one of 6 highbush blueberry varieties profiled on ZonePlant. See the full highbush blueberry variety table for side-by-side comparison.
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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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