USDA Hardiness Zone 3a: Planting Guide
Min temp
-40°F to -35°F
Growing season
90 days
Compatible crops
1
Sample region
Interior Alaska
Far-north growing zone with very short summers and severe winter cold.
Growing in zone 3a
Detailed guidance for this section is being prepared. Check back soon.
Recommended crops for zone 3a
Frost timing in zone 3a
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Common challenges in zone 3a
- Very short growing season
- Late spring frosts
- Limited fruit-tree options
- Heavy mulching required
Best practices
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Sample regions in zone 3a
Interior Alaska, Northern Minnesota, and Northern North Dakota.
Frequently asked questions
- What is the average minimum winter temperature in zone 3a?
Zone 3a has an average annual minimum temperature of -40°F to -35°F.
- How long is the growing season in zone 3a?
Approximately 90 days from last spring frost to first fall frost.
- What fruit trees grow well in zone 3a?
Common fruit trees that grow in zone 3a include apple.