Variety fit — Hawaii
Can I grow French Improved Prune plum in Hawaii?
The verdict
Not recommended
- Needs about 800 chill hours; your area averages 0 and tops out near 0.
- Your zone 12b is warmer than this variety's range (zones 5–9); it may not receive reliable winter chilling.
Based on Hawaii’s main growing area (96813): zone 12b, ~0 chill hours. Your exact site may differ — check your ZIP.
The numbers
| French Improved Prune chill requirement | 800 chill hours |
|---|---|
| French Improved Prune hardiness | USDA zones 5–9 |
| Hawaii average chill (96813) | 0 hours (0–0 across 10 winters) |
| Hawaii zone (96813) | USDA zone 12b |
Keep checking
Or the same verdict for another region:
Questions
- Can I grow French Improved Prune plum in Hawaii?
- Probably not — Needs about 800 chill hours; your area averages 0 and tops out near 0.
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
- [4] Dave Wilson Nursery. French Improved Prune — variety specifications — accessed October 2026