Highbush blueberry
Vaccinium corymbosum · Ericaceae
📷 Wikimedia Commons · Public domain
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around highbush blueberry and prepare for winter.
ID card
- Family
- Ericaceae
- Type
- Deciduous shrub
- Mature height
- 1.5 to 2 m
- Flowering
- April to May
- Fruits
- Dark blue berries, edible
- Hardiness
- –20 to –25 °C
- Growth
- Moderate
- Origin
- North America
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Blueberries need acidic soil (pH 4.5-5.5), it's essential. Plant in ericaceous compost or a dedicated container.
The common mistake
Planting in neutral or slightly alkaline soil.
The pro's trick
Mix peat + pine bark (50/50) in the planting hole and around it: it acidifies the soil long-term.
Care
Sunlight
Cultivated blueberry prefers a sunny location (minimum 6 hours per day) for optimal fruiting. It tolerates partial shade, but berry production will be less abundant. Plant it in a spot sheltered from overly dry winds.
Watering
Keep the soil regularly moist, especially during growth and fruiting. Watering should be generous during dry periods, without creating water stagnation. Mulch at the base to retain moisture and regulate soil temperature.
Soil Preparation
Blueberry requires acidic soil (pH 4.5 to 5.5). Enrich the substrate with heather peat and well-decomposed organic matter. Good drainage is essential to prevent root rot despite high water requirements.
Pruning and Maintenance
Pruning is not mandatory, but light cleaning in spring (removal of dead wood) promotes branching. After 4 to 5 years, progressively eliminate the oldest branches to rejuvenate the shrub and increase vigour.
Fertilization
Apply balanced or acidic-specific fertilizer (for acid soil plants) in early spring. Avoid excess nitrogen, which favours foliage at the expense of fruit. A light dose is generally sufficient.
Pests and Diseases
Blueberry is generally robust. Watch out for birds coveting the berries: use netting if necessary. In case of excess moisture, fungi may appear; ensure good air circulation. Few major pests affect it.
Did you know?
Wild blueberry (Vaccinium) has fed Native American populations for millennia and remains a culinary symbol of North America. The modern cultivated variety 'Highbush' was selected in the early 20th century in North Carolina by a passionate American botanist, transforming a wild berry into a major fruit crop. Today, blueberry is renowned for its richness in antioxidants and remains one of the most precious small fruits in temperate gardens.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
- CowberryVaccinium vitis-idaea
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- BearberryArctostaphylos uva-ursi
- Strawberry treeArbutus unedo
- Tree HeathErica arborea
Tips generated and checked by Viridia — adapt them to your local climate.