When to Plant in Spokane, WA

Spokane is Eastern Washington — a completely different climate from Seattle. No marine influence here. Zone 6b gives Spokane hot, dry summers (often 90–95°F), cold winters with significant snow, and a last frost around May 13. You get about 160 frost-free days.

Eastern Washington's sunny, dry summers are actually excellent for growing tomatoes, peppers, and melons — crops that would struggle in Seattle's maritime climate. The trade-off is irrigation: Spokane gets only 16 inches of rain per year, almost all in winter and spring. Summer gardening requires consistent deep watering.

FAQ

When is the last frost date in Spokane, WA?

Spokane's average last frost date is around May 13 — about 3 weeks later than Seattle. Start warm-season seeds indoors in late February and transplant outdoors after late April.

Is Spokane's climate good for tomatoes?

Yes — Spokane's hot, sunny summers are actually better for tomatoes than Western Washington. Choose mid-season varieties (70–80 days) and expect excellent production from July through September.

How much do I need to water in Spokane?

Significantly. Spokane receives almost no rain from June through September. Deep watering 2–3 times per week (or a drip system on a timer) is essential for a productive summer garden.

How is Spokane different from Seattle for gardening?

Night and day. Spokane has hotter, sunnier summers — great for tomatoes, peppers, and melons. But it also has colder winters and requires irrigation. Seattle's maritime climate favors cool-season crops year-round.

How does Plan My Garden help Spokane gardeners?

Enter your Spokane zip code and we'll look up your exact Eastern Washington frost dates, then generate a full planting schedule for every crop — tuned for Spokane's dry continental climate.

Frost dates for Spokane ZIP codes

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