Bluecrop Blueberry

Bluecrop stands as the most commercially significant Northern Highbush blueberry ever released, shaping production on nearly every continent where the species thrives. It emerged from the cooperative USDA and New Jersey Agricultural Experiment Station breeding program, released in 1952 from crosses tracing to wild Vaccinium corymbosum selections and cultivated highbush seedlings — part of the foundational work initiated by Frederick Coville and continued by George Darrow. The parentage is documented as GM-37 crossed with CU-7. For more than 70 years Bluecrop has served as the industry mid-season standard: the control plant in commercial trials worldwide, the benchmark flavor reference in taste evaluations, and the most commonly planted highbush cultivar in the northern blueberry belt from Michigan and New Jersey to Oregon’s Willamette Valley. Its combination of consistent yield, drought tolerance, and adaptability across a wide range of humid climates has sustained its commercial relevance even as proprietary club varieties have proliferated.

Bluecrop performs best in full sun with well-drained, highly acidic soil; maintaining pH between 4.5 and 5.0 is the single most important management variable. Sandy loam or peat-amended beds hold the ideal pH range more reliably than clay-heavy soils, which should be deeply amended before planting. Space plants 4–6 ft apart in rows to allow adequate air circulation and light penetration into the fruiting canopy. A 4–6 inch layer of acidic mulch — pine bark, pine needles, or sawdust — conserves moisture, suppresses weeds, and continues to lower pH as it decomposes. Bluecrop roots are shallow and fine; never cultivate deeply around established plants. The variety requires 800–1,000 chill hours for reliable bloom, making it well-suited to USDA Zones 4–7 but marginal in the warmer reaches of Zone 8. Prune in late dormancy to remove old canes and open the center; Bluecrop benefits from aggressive annual pruning to sustain large-berry production on vigorous new wood. Container culture works well in 15-gallon or larger pots filled with acidic blueberry mix, provided pH is monitored seasonally.

USDA Hardiness Zone: 4-7
AHS Heat Zone: 1-7
Chill Hours: 800-1000
Sun Requirements: Full Sun
Soil pH: 4.5-5.0
Soil Type: Acidic, sandy loam high in organic matter
Soil Drainage: Well-drained (excellent drainage required; intolerant of waterlogging)
Water Requirements: Medium (consistent, even moisture; shallow-rooted and intolerant of both drought and waterlogging)
Drought Tolerance: Above average for NHB
Plant Spacing: 4-6 ft apart
Container Suitability: Yes; suitable for large containers (15+ gallon) with acidic media
How to Prune: Remove oldest canes at ground level annually once plants reach 5-6 years; cut out 1 in 6 canes, selecting the largest oldest wood; thin for airflow and to maintain 5-year-old productive canes

Bluecrop grows as an upright, moderately vigorous deciduous shrub reaching 5–6 ft tall at maturity with a spread slightly narrower than its height. Young canes are yellowish-green, aging to gray-brown; the arching shoot tips give mature plants a slightly open, fountain-like silhouette. Foliage is medium-sized, elliptical, and deep green through the growing season before turning vivid orange and red in autumn — one of the more ornamental fall displays among Northern Highbush varieties. Growth rate is slow to moderate, with most of the framework established in years two through four. Bluecrop's upright habit and moderate size make it well-suited to hedgerow plantings, mixed shrub borders, and large containers. The variety supports bees, butterflies, songbirds, and small mammals across the season, providing both early nectar from bell-shaped spring flowers and late-summer fruit that wildlife value highly. Deer readily browse young shoots and canes; physical exclusion is recommended in areas with significant deer pressure.

Mature Height: 5-6 ft tall
Mature Spread: 4-6 ft wide
Growth Habit: Upright, multi-stemmed shrub
Growth Rate: Slow to Moderate
Foliage Type: Deciduous
Food Forest Layer: Shrub
Permaculture Role: Edible fruit shrub; pollinator nectar source; wildlife food (berries) and habitat
Leaf Color: Green
Fall Foliage Color: Red to orange-red
Thorns?: No
Attracts Wildlife: Flowers attract bumblebees, native bees, and honey bees; ripe berries attract songbirds and small mammals
Life Span: 20-50 years

Bluecrop is partially self-fertile and will set a crop when planted alone, but cross-pollination with compatible Northern Highbush companions significantly improves both yield and berry size. Duke, Jersey, and Blueray are the most commonly paired companions; Patriot and Chandler also overlap well in bloom timing and perform reliably in the same hardiness range. Bluecrop flowers mid-season — typically mid-April to early May in temperate climates — with clusters of white, downward-facing bell flowers that are highly attractive to native bumblebees and managed honeybees alike. Planting two or three compatible varieties within 50–100 ft maximizes cross-pollination rates. The upright, open canopy structure allows good bee access to interior flower clusters. For home growers planting a single bush, Bluecrop will produce adequately, but pairing it with even one companion of a different variety typically doubles effective berry set.

Bloom Season: Early
Bloom Window: Mid Apr - Mid May
Pollination Requirements: Self-fertile but cross-pollination significantly improves yield and berry size; plant 2+ varieties
Pollination Mechanism: Insect-pollinated (buzz/sonication pollination by bumblebees and native bees; honey bees also forage)
Flower Color: White (pink-tipped in bud)
Ploidy: Tetraploid (4x)

Bluecrop produces large to very large berries averaging 0.5–0.75 inch in diameter with the classic light blue color and a heavy waxy bloom that signals peak freshness at harvest. The small, dry picking scar means berries detach cleanly with minimal juice loss — a key advantage for fresh market and u-pick operations. Flavor is sweet and mild with a pleasant balance and light to medium intensity; it appeals to a broad range of palates, including those who find more assertive blueberry varieties overpowering. Texture is firm, holding up well under refrigeration for 2–3 months, and the berries ship and store far better than most highbush varieties. Harvest runs from late June through late July in temperate climates, with clusters ripening sequentially over several weeks rather than all at once, extending the picking season. Bluecrop excels fresh, in baked goods, for freezing, and in preserves; its large berry size makes it especially attractive for culinary presentations where visual impact matters.

Ripening Season: Mid
Harvest Window: Late Jun - Late Jul
Fruit Size: 0.5-0.75 inch
Flavor: Sweet, mild, excellent; light to medium flavor intensity; very good fresh eating quality
Fruit Color: Light blue with good bloom (waxy coating)
Fruit Texture: Firm
Bearing Habit: Mid-season
Years to Bear: 2-3 years (first harvest); 6-8 years to full production
Storage Life: 2-3 months
Culinary Uses: Fresh eating; baking (pies, muffins, cobblers); jam and preserves; freezing; smoothies; syrups; dried fruit

Bluecrop carries susceptibility to Mummy Berry (Monilinia vaccinii-corymbosi), the most damaging fungal disease in humid blueberry regions. Spores germinate from infected mummies overwintering in the soil; removing and destroying fallen fruit each season is the most effective organic control. Spring mulch renewal buries surface mummies before spore release. Resistance data for Botryosphaeria Stem Blight (Botryosphaeria dothidea) and Anthracnose Fruit Rot (Colletotrichum acutatum) is not well-characterized for Bluecrop in published trial literature; monitor for stem dieback and post-harvest fruit decay and prune promptly when detected. Bluecrop is susceptible to Phytophthora Root Rot (Phytophthora cinnamomi) in poorly drained or waterlogged conditions — raised beds and excellent drainage are the primary preventive measures. Spotted Wing Drosophila (Drosophila suzukii) is an emerging pressure across the blueberry-growing range; fine-mesh exclusion netting applied at color break is the most reliable non-chemical control for home plantings. Blueberry Maggot (Rhagoletis mendax), Cranberry Fruitworm (Acrobasis vaccinii), and Plum Curculio (Conotrachelus nenuphar) round out the primary pest complex; sanitation, monitoring traps, and kaolin clay applications reduce pressure organically.

Mummy Berry: Susceptible
Botryosphaeria Stem Blight: Moderately Susceptible
Anthracnose Fruit Rot: Susceptible
Phytophthora Root Rot: Susceptible
Septoria Leaf Spot: Moderately Susceptible
Spotted Wing Drosophila: Moderately Susceptible
Blueberry Maggot: Moderately Susceptible
Cranberry Fruitworm: Moderately Susceptible
Plum Curculio: Moderately Susceptible

• Soil pH is non-negotiable: Test before planting and correct to 4.5–5.0 using sulfur; recheck annually. Bluecrop planted above pH 5.5 shows chlorotic foliage and stunted growth even with perfect care.
• Mulch deeply and renew annually: A thick layer of pine bark or pine-needle mulch retains moisture, slowly acidifies the soil, and buries Mummy Berry mummies before they release spores in spring; replenish each March.
• Prune for large berries: Remove old gray canes at the base each late winter to force vigorous new wood, which carries the largest-berried clusters.
• Net before color break for SWD: Spotted Wing Drosophila lays eggs in softening fruit; apply fine-mesh exclusion netting when berries first show color, not after damage appears.

Our 365-Day Plant Guarantee: We ensure that our plants are delivered to you alive and healthy. If your plant does not survive its first year, you're eligible for store credit under these conditions:

1. Your location falls within the appropriate USDA hardiness zone for the plant variety (refer to our hardiness zone map).
2. You maintain the roots' moisture and plant within three days of delivery, following the instructions in our Planting Guide.

If you're concerned about your plant's health, please consult our guide, How to Tell if Your Tree is Dead or Dormant. Remember, our plants are shipped in a dormant state and may leaf out at different times based on their species. To check for plant vital