How to Grow Lowbush Blueberry 'Blueray'
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Lowbush Blueberry 'Blueray'
Vaccinium angustifolium 'Blueray'
shrubBlueray is a highbush blueberry cultivar prized for its large, firm berries and exceptional flavor. This deciduous shrub grows 4-6 feet tall and produces abundant clusters of delicate white flowers in spring followed by heavy fruit production. It offers ornamental appeal with attractive fall foliage and is one of the most reliable commercial and home garden varieties.
When should you plant Lowbush Blueberry 'Blueray' in your zone?
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Example Lowbush Blueberry 'Blueray' timeline · Pittsburgh, PA (Zone 6b)
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Plant Lowbush Blueberry 'Blueray'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Lowbush Blueberry 'Blueray'
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-7, hardy to zone 3b with winter protection
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Get my Lowbush Blueberry 'Blueray' timeline →Growth Stages
Establishment
Year 1Newly planted shrub with limited growth; may produce flowers but berries should be removed first year
Focus on root development; water deeply and regularly; remove all flowers first year to encourage root establishment; apply 2-3 inches of mulch
Vegetative Growth
Years 1-3Shrub develops branching structure and foliage; stems thicken and new canes emerge from base
Prune lightly to shape; remove weak or damaged canes; maintain consistent watering; fertilize with acid-loving plant fertilizer in early spring
Flowering
April-May (4-6 weeks)Dense clusters of small, white to pale pink bell-shaped flowers appear on branch tips in spring
Do not fertilize heavily during flowering; adequate pollination requires cross-pollination (plant another compatible variety nearby); monitor for frost damage during bloom
Fruiting
June-August (3-4 months)Green berries develop from flowers, gradually enlarging and turning blue-black when ripe with characteristic whitish bloom coating
Thin excessive fruit clusters if desired for larger berries; maintain consistent moisture; birds may require netting to protect ripe fruit; fertilize with potassium-rich formula
Dormancy
October-MarchFoliage turns vibrant red and burgundy in fall before leaves drop; plant becomes dormant for winter
Prune in late dormancy (February-March); remove dead, diseased, or crossing canes; refurbish by removing oldest canes (1-2 per year on mature plants); apply dormant oil spray if needed
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hang red sticky traps in early summer; remove infested berries; apply spinosad or pyrethrin sprays when flies appear; practice good sanitation by removing fallen fruit
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Apply Bt (Bacillus thuringiensis) at petal drop and again 2 weeks later; remove infested berries; ensure good air circulation
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Remove affected branches below damage; maintain plant vigor through proper watering and pruning; keep trees healthy to resist attack
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Spray with water to dislodge; apply sulfur or neem oil in early summer; avoid over-fertilizing with nitrogen
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Hand-pick early morning; apply neem oil or spinosad; use pheromone traps away from plants; encourage beneficial insects
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Ensure good air circulation; avoid wetting foliage; apply sulfur spray at first sign; remove infected leaves; avoid high-nitrogen fertilizer
Uses
Fresh eating and baking
CulinaryBlueray berries are excellent for fresh consumption, baking, jams, and preserves due to their large size and firm texture. They freeze exceptionally well for long-term storage and maintain quality in pies, muffins, and desserts. [source]
Antioxidant health benefits
MedicinalBlueberries are rich in anthocyanins and other polyphenolic compounds associated with antioxidant and anti-inflammatory properties. Regular consumption is linked to cardiovascular health, cognitive function, and reduced chronic disease risk. [source]
Natural dye source
HouseholdBlueberry juice produces blue and purple dyes suitable for fabrics and crafts. The pigments have been historically used for textile dyeing and remain popular in natural dye practices. [source]
Bird and pollinator food
WildlifeBlueray flowers attract native bees and other pollinators critical for fruit set, while ripe berries provide essential nutrition for songbirds, cedar waxwings, and other wildlife during summer and fall migration. [source]
Landscape value
OrnamentalBeyond fruit production, Blueray offers year-round interest with delicate spring flowers, productive summer fruit, and brilliant red-burgundy fall foliage. It works well in hedges, specimen plantings, and mixed shrub borders. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Pick berries when fully dark blue (nearly black) with whitish bloom coating—they continue to ripen for several days after color change, with firmest, sweetest berries 2-3 days after turning fully blue. Gently roll ripe berries off into hand or collection container; avoid bruising. Harvest in morning after dew dries. Peak harvest occurs mid-to-late July through August. One mature shrub produces 10-15 pounds of berries annually.
Fun Facts
- 🌱 Blueray was released by the New Jersey Agricultural Experiment Station in 1952 and remains one of the most widely planted commercial highbush blueberry varieties due to its consistent, high-quality production and excellent flavor.
- 🌱 Blueberries require cross-pollination with another compatible variety for optimal fruit set—planting Blueray with Duke, Jersey, or Patriot significantly increases yield and berry size compared to single-variety plantings.
- 🌱 The whitish coating on ripe blueberries (called 'bloom') is a natural waxy protective layer that develops as berries mature; it doesn't indicate mold and actually helps preserve freshness and extends shelf life.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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