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Gresham, OR planting calendar

When to plant vegetables in Gresham, OR (USDA hardiness zone 9a). Typical last spring frost around Mar 16, 2026 (±21 days year to year), first fall frost around Nov 20, 2026 (±19 days).

Playing it safe? Spring frost holds off until about Apr 11, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

These dates are typical for the whole city. Enter your ZIP for frost dates from the station nearest you:

Month by month in Gresham, OR

January

February

March

April

September

December

Understand your frost dates

More Oregon planting calendars

ZIP codes in Gresham

97030, 97080

Where these dates come from

Frost dates for Gresham, ORare NOAA 1991–2020 climate normals from a station representative of the area, which covers 2 ZIP codes. Individual ZIP codes within it can run earlier or later.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.