Variety fit — Colorado
Can I grow Haralson apple in Colorado?
The verdict
Not recommended
- Your zone 7a is warmer than this variety's range (zones 3–4); it may not receive reliable winter chilling.
Based on Colorado’s main growing area (81501): zone 7a, ~1,650 chill hours. Your exact site may differ — check your ZIP.
The numbers
| Haralson chill requirement | 800–1,000 chill hours |
|---|---|
| Haralson hardiness | USDA zones 3–4 |
| Colorado average chill (81501) | 1,650 hours (1,253–1,821 across 10 winters) |
| Colorado zone (81501) | USDA zone 7a |
Better apple choices for Colorado
These meet Colorado’s chill hours and zone comfortably:
Keep checking
Or the same verdict for another region:
Questions
- Can I grow Haralson apple in Colorado?
- Probably not — Your zone 7a is warmer than this variety's range (zones 3–4); it may not receive reliable winter chilling.
Sources
- [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
- [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026
- [3] University of Minnesota Extension. Growing apples in the home garden — accessed July 2026
- [4] Dave Wilson Nursery. Apples — DWN Variety Finder product list — accessed July 2026