berry variety in zone 4a
Mac Black black raspberry in zone 4a
Mac Black · Rubus occidentalis
- Zone
- 4a -30°F to -25°F
- Growing season
- 120 days
- Chill needed
- 700 to 1000 below 45°F
- Days to harvest
- 30 to 50
The verdict
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About Mac Black
Sweet-tart, rich, complex; fresh, jam. Late-ripening summer bearer, extends the black raspberry harvest. Cold-hardy.
Critical timing for zone 4a
Detailed guidance for this section is being prepared. Check back soon.
Common challenges in zone 4a
- ▸ Late frosts damage early bloomers
- ▸ Limited peach varieties
Modified care for zone 4a
Detailed guidance for this section is being prepared. Check back soon.
Mac Black in adjacent zones
Frequently asked questions
- Will Mac Black black raspberry grow in zone 4a?
Yes. Mac Black is recommended for USDA zones 4a through 6b, which includes zone 4a.
- Are there enough chill hours in zone 4a?
Black Raspberry needs 700 to 1000 chill hours. Zone 4a typically meets this range; check local microclimate against historical chill totals to confirm.
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Image: "Rubus occidentalis (35029818313)", by Karen Hine, via Wikimedia Commons, licensed under CC-BY Source.
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