Variety fit — Idaho
Can I grow French Improved Prune plum in Idaho?
The verdict
Yes
- Your zone 7a and typical 1809 chill hours both suit this variety.
Based on Idaho’s main growing area (83702): zone 7a, ~1,809 chill hours. Your exact site may differ — check your ZIP.
The numbers
| French Improved Prune chill requirement | 800 chill hours |
|---|---|
| Idaho average chill (83702) | 1,809 hours (1,473–2,224 across 10 winters) |
| Idaho zone (83702) | USDA zone 7a |
Keep checking
Or the same verdict for another region:
Planting a French Improved Prune in Idaho? Get its care calendar for your exact ZIP code, with email reminders.
Save this tree in My OrchardQuestions
- Can I grow French Improved Prune plum in Idaho?
- Yes — Your zone 7a and typical 1809 chill hours both suit this variety.
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] Dave Wilson Nursery. French Improved Prune — DWN Variety Finder — accessed July 2026