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Planting calendar for ZIP 97347 (Grand Ronde, OR)

When to plant vegetables in Grand Ronde, OR (USDA hardiness zone 8b). Typical last spring frost around May 20, 2026 16 days year to year), first fall frost around Oct 23, 202614 days).

Playing it safe? Spring frost holds off until about Jun 9, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Grand Ronde, OR planting calendar for dates typical of the whole city.

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Month by month in Grand Ronde, OR

February

March

April

May

June

August

Understand your frost dates

Frost dates for ZIP 97347: NOAA 1991-2020 normals (USC00354776 LAUREL MTN, OR US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.