🧄 Can I Plant Garlic in Spokane, WA?

2026 planting guide for Zone 6b · Last frost ~April 22 · Growing season ~172 days

⏳ WAIT — Too late to harvest before first frost (~Nov 13)

Garlic needs at least 240 days to harvest, but there are only ~152 days before the average first fall frost around Nov 13. Wait until next spring for best results.

Planting window: Oct 26 – Nov 9 (next spring)
Skip this season. Plan to start garlic again around Oct 26 next spring.
Live result based on current forecast for Spokane, WA · Updates every 6 hours
USDA Zone
6b
Last Spring Frost
~April 22
First Fall Frost
October 11
Growing Season
~172 days
Ideal Temp for Garlic
35–70°F
Frost Risk
✅ Tolerant

Growing Garlic in Spokane

Spokane's Zone 6b inland Pacific Northwest climate differs significantly from Seattle's — less rain, more sun, and more extreme temperature swings. The Palouse region's continental climate means hot, dry summers ideal for tomatoes and peppers (a welcome contrast to rainy western Washington). The frost-free window of about 171 days is adequate for a wide range of crops when warm-season starts begin indoors in late March.

In Spokane (last frost around April 22), garlic can go out around December — approximately 20 weeks before the last expected frost, making it an early-season opportunity.

Garlic thrives between 35°F and 70°F. It tolerates temperatures as low as 20°F, making it a candidate for early spring planting before the last frost date. Expect 240–270 days from transplant to first harvest. Plant in fall, harvest next summer.

Frequently Asked Questions

When can I plant garlic in Spokane, WA?

In Spokane (last frost around April 22), garlic can go out around December — approximately 20 weeks before the last expected frost, making it an early-season opportunity.

What is the USDA hardiness zone for Spokane?

Spokane, WA is in USDA Plant Hardiness Zone 6b. The last expected spring frost is around April 22, and the first fall frost arrives around October 11. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant garlic outside in Spokane right now?

That depends on the current weather forecast. Garlic needs temperatures above 20°F (ideally 35–70°F) to thrive. CanIPlant checks your real 7-day forecast and any active frost alerts to give you a live YES, NO, or WAIT answer — just enter your ZIP code.

Can I grow garlic in Spokane 2026?

Yes — Garlic grows well in Spokane, WA. With a Zone 6b climate and a growing season of ~172 days, Spokane is well-suited for cool-season crops like garlic. As a frost-tolerant crop, garlic can even go out a few weeks before the last frost date.

Grow Garlic in Other Cities

New York, NYLos Angeles, CAChicago, ILHouston, TXPhoenix, AZPhiladelphia, PASan Antonio, TXSan Diego, CA

Get a live answer for your exact address

Enter your ZIP code — CanIPlant checks your real 7-day forecast, frost alerts, and 30-year climate data to tell you whether to plant garlic right now.

Check My ZIP Code →