When to plant summer savory in Spokane, Washington

April 26 – May 10

Transplant outdoors · typical Spokane year

Climate basis: NOAA station Spokane INTL AP, WA (USW00024157), 5 mi (8 km) from downtown Spokane (ZCTA 99201 centroid), elevation 2353 ft, on the 1991–2020 climate normals. Transplant summer savory outdoors from approximately the dates above, anchored to the median last spring 32°F freeze (April 26). One year in ten still freezes after May 10.

Last spring freezeApril 261-in-10 after May 10

First fall freezeOctober 121-in-10 before Sep 29

Frost-free season≈ 168 daysmedian at 32°F

Hard freeze, 28°Apr 6 – Oct 23kills even hardy greens

USDA zone7a0 to 5°F winter low — not frost timing

The Spokane year

Start seeds indoorsMar 15 – Mar 29

Transplant outdoorsApr 26 – May 10

Direct-sow outdoorsApr 26 – May 10

indoors under lights
in the garden
frost-free season
1-in-10 years still freeze to May 10

Summer Savory in Spokane · freeze context from Spokane INTL AP, WA, 1991–2020 normals.

Every method, with its sources

Start seeds indoors

Mar 15 – Mar 29

Illinois Extension allows about 4 to 6 weeks to produce summer savory transplants, and those go out after danger of frost is past, so sowing runs 6 to 4 weeks before the last spring freeze. Anchored to the median last spring freeze (Apr 26). University of Illinois Extension · Texas A&M AgriLife Extension Service

Transplant outdoors

Apr 26 – May 10

Illinois Extension transplants summer savory after danger of frost is past, matching the Texas A&M sowing cutoff, so the window opens at the last spring freeze. Anchored to the median last spring freeze (Apr 26). Texas A&M AgriLife Extension Service

Direct-sow outdoors

Apr 26 – May 10

Texas A&M AgriLife Extension's herb publication directs seeding summer savory after danger of frost, a point rule that opens a two-week sowing span at the last spring freeze. Anchored to the median last spring freeze (Apr 26). Texas A&M AgriLife Extension Service

Variety assumption: Illinois Extension notes summer savory can be harvested within two months of sowing, so one spring sowing carries the season.

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

This week, not a typical year:

Crop rule sources (2)

Texas A&M AgriLife Extension Service: Herbs (Easy Gardening series, EHT-079) (accessed 2026-07-25)
"Seed after danger of frost in full sun; space 6–9 in. apart"
University of Illinois Extension: Savory: Summer | Herbs (accessed 2026-07-25)
"Summer savory is grown from seeds sown directly in the garden or indoors and then transplanted after danger of frost is past."

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