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Variety fit — New Hampshire

Can I grow Stanley plum in New Hampshire?

The verdict

Yes

  • Your zone 5b and typical 1520 chill hours both suit this variety.

Based on New Hampshire’s main growing area (03301): zone 5b, ~1,520 chill hours. Your exact site may differ — check your ZIP.

The numbers

Stanley requirements vs. New Hampshire climate
Stanley chill requirement800 chill hours
Stanley hardinessUSDA zones 4–9
New Hampshire average chill (03301)1,520 hours (1,318–1,792 across 10 winters)
New Hampshire zone (03301)USDA zone 5b
USDA pomological watercolor of Stanley plum
Prunus domestica: StanleyUSDA pomological watercolor, J. Marion Shull, 1937 · USDA Pomological Watercolor Collection

Keep checking

Or the same verdict for another region:

Planting a Stanley in New Hampshire? Get its care calendar for your exact ZIP code, starting with this month’s tasks for one tree, free.

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Questions

Can I grow Stanley plum in New Hampshire?
Yes — Your zone 5b and typical 1520 chill hours both suit this variety.

Planting a Stanley? Gear that helps

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Before you plantMySoil mail-in soil test kitLab-grade pH and nutrient analysis with amendment recommendations — worth doing before you plant.View on Amazon →First-year wateringTreegator slow-release watering bag20 gallons drips over 5–9 hours — the easiest way to keep a first-year tree consistently watered.View on Amazon →Bark protectionExpandable trunk protectors (5-pack)Stops rabbit, vole, and mower damage on young bark — cheap insurance for a new orchard.View on Amazon →

Sources

  1. [1] Open-Meteo / Copernicus ERA5. Historical Weather API (hourly 2m temperature) — accessed July 2026
  2. [2] USDA / PRISM (Oregon State University). 2023 USDA Plant Hardiness Zone Map — accessed July 2026
  3. [3] Dave Wilson Nursery. Stanley Prune — variety specifications — accessed July 2026