Variety fit — Idaho
Can I grow Chestnut Crab apple in Idaho?
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 Idaho’s main growing area (83702): zone 7a, ~1,809 chill hours. Your exact site may differ — check your ZIP.
The numbers
| Chestnut Crab hardiness | USDA zones 3–4 |
|---|---|
| Idaho average chill (83702) | 1,809 hours (1,473–2,224 across 10 winters) |
| Idaho zone (83702) | USDA zone 7a |
Better apple choices for Idaho
These meet Idaho’s chill hours and zone comfortably:
Keep checking
Or the same verdict for another region:
Questions
- Can I grow Chestnut Crab apple in Idaho?
- 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