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Planting calendar for ZIP 97329 (Cascadia, OR)

When to plant vegetables in Cascadia, OR (USDA hardiness zone 8b). Typical last spring frost around Apr 29, 2026 16 days year to year), first fall frost around Oct 13, 202618 days).

Playing it safe? Spring frost holds off until about May 19, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Cascadia, OR

January

February

March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 97329: NOAA 1991-2020 normals (USC00351433 CASCADIA, OR US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.