Variety fit — Massachusetts
Can I grow Key Lime citrus in Massachusetts?
The verdict
Not recommended
- Your zone 6a is colder than this variety's hardiness range (zones 8–11); winter cold may damage or kill the tree.
Based on Massachusetts’s main growing area (01002): zone 6a, ~1,616 chill hours. Your exact site may differ — check your ZIP.
The numbers
| Key Lime hardiness | USDA zones 8–11 |
|---|---|
| Massachusetts average chill (01002) | 1,616 hours (1,393–1,881 across 10 winters) |
| Massachusetts zone (01002) | USDA zone 6a |
Keep checking
Or the same verdict for another region:
Questions
- Can I grow Key Lime citrus in Massachusetts?
- Probably not — Your zone 6a is colder than this variety's hardiness range (zones 8–11); winter cold may damage or kill the tree.
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] Four Winds Growers. Mexican Key Lime Tree — product page — accessed July 2026