Polaris Blueberry Bush (Vaccinium corymbosum × angustifolium)

The Polaris Blueberry is a compact, cold-hardy shrub developed by the University of Minnesota. As a half-high hybrid, it combines the hardiness of lowbush blueberries with the fruit quality of highbush types. It produces sweet, medium-sized berries and is ideal for small gardens or container growing. Its white spring flowers and red fall foliage add ornamental value, making it both a productive and attractive landscape plant.

Category

Sun Needs:

  • Full sun (at least 6 hours of direct sunlight)
  • Can tolerate partial sun but may reduce fruit yield

Bloom Time:

  • White flowers in May
  • Berries ripen in late July to early August
Size:

Height: 3 to 4 feet
Width: 3 to 4 feet

Attributes:
  • Cold-hardy to USDA Zones 3–7 (tolerates -30°F to -40°F)
  • Sweet, juicy, medium-sized berries
  • Compact and upright growth habit
  • Red fall foliage adds seasonal interest
  • Suitable for containers and small spaces
  • Self-fertile but benefits from cross-pollination with other varieties
Care Tips:
  • Plant in moist, well-draining, acidic soil
  • Water regularly, especially during dry spells or in containers
  • Mulch to retain moisture and suppress weeds
  • Fertilize annually with an organic, acid-loving plant fertilizer
  • Prune in late winter to maintain shape and airflow
Pest Watch:
  • Generally low-maintenance
  • Monitor for birds (netting may be needed during fruiting)
  • Watch for common blueberry pests like aphids or mites in some regions

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