blissgarden.

When to plant acorn squash in Oregon

Oregon spans USDA zones 6b–9b, so the right time to plant acorn squash shifts by weeks across the state. The window to sow seed directly outdoors runs from about February 18 in Aloha to June 16 in Redmond — below are local dates for 69 cities, each computed from its own frost dates.

In Portlandthe acorn squash direct sow window (March 4–March 18) has passed for this year.
CityZoneLast frostFirst frostDirect sow
Portland8bFebruary 25December 1March 4 – March 18
Eugene8bApril 11October 23April 18 – May 2
Salem8bApril 3November 1April 10 – April 24
Gresham9aMarch 16November 20March 23 – April 6
Hillsboro8bApril 16October 23April 23 – May 7
Bend6bJune 6September 20June 13 – June 27
Beaverton9aApril 1November 6April 8 – April 22
Medford8bApril 8October 29April 15 – April 29

Acorn Squash in Oregon: FAQ

When can I plant acorn squash in Oregon?

Across Oregon, the time to direct-sow acorn squash spans roughly February 18 in Aloha to June 16 in Redmond, each following that city's local frost dates.

Does the acorn squash planting date vary across Oregon?

Yes. Oregon publishes 69 cities with their own frost dates, so the right acorn squash planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.

How long does acorn squash take to grow in Oregon?

Acorn Squash takes about 80–100 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.

Planting reminders

Never miss a window in your area

An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.

Acorn Squash planting guide →All Oregon cities →Oregon planting calendar →
When to Plant Acorn Squash in Oregon — Frost-Based Dates by City — BlissGarden