Duke Highbush Blueberry
Vaccinium corymbosum
vak-SIN-ee-um kor-rim-BOW-sum
Fruiting Plants: Blueberry
Zone
4: -30° to -20°
Min. Temp
Frost Tolerant: 24°
The most widely planted early ripening northern variety. Heavy, consistent yield with an attractive, firm, light blue, high quality berry. Blooms late but ripens early which protects the blossoms from spring frosts. Branches may droop to the ground when laden with fruit, and requires the use a simple trellis as support. Fall foliage is orange-yellow blooming in white during the spring. Requires 800 to 1000 chill hours to set fruit.
Appearance
Summer Foliage
Blue-Green
Fall Foliage
Blue
Flower Color
White
Blooming Time
Late Spring - Late Summer
Habit
Bush
Height
4–6 ft
Spread
4–6 ft
Characteristics
Type
Hybrid
Safety
Edible Parts
Growth Rate
Moderate
Tolerance/Resistance
Disease Resistant, Cold Hardy
Attracts
Attracts Honeybees & Pollinators; Attracts Birds
Uses/Placement
Culinary
Optimal Growing Conditions
Sun Exposure
Full Sun: 8-12 hrs
Soil Texture
Sandy
Soil Drainage
Well-drained
Soil Moisture
Moist
Soil PH
Highly Acidic: below 5.5
PH Tolerance
Requires acidic soil
PH Correction
Acidic soil improves flowering and fruiting
Soil Amendment(s)
Peat Moss
Fertilizer
Acidic Fertilizer Preferred
Fertilizer Formula
Acid Plant Formula
Fertilizer Timing
Pre-Fruiting
Micronutrients
Iron Supplement Recommended
Care
Care Level
Moderate
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Rhizomes/Suckers
Propagation Licensing
Open propagation permitted
Division Timing
Rarely Needs Division
Fruit and Pollination
Season
Mid Season
Fruit Size
Medium
Fruit Characteristics
Sweet
Ploidy
Diploid
Brix Rating
11 Very Sweet
Pollination
Buy 2 different blueberries for best results
Chill Hours
Very High Chill 1201+ hours
