Spokane, WA — USDA Zone 7a

Frost dates and growing season in Spokane

Spokane spans USDA zones 6 to 7 across its ZIP codes (Zone 6b, Zone 7a); the city center sits in Zone 7a, so warmer and cooler pockets exist either side of that.

These are 50%-probability averages modeled from Spokane's USDA hardiness zone and regional climate normals — not a single-station reading. In a typical year the last spring frost will have passed by May 5, but a colder-than-average year can run 1-2 weeks later. Plant tender crops (tomatoes, peppers, basil) once both soil and night temperatures are consistently warm — a thermometer beats the calendar.

Growing season in Spokane

Spokane, Washington sits in USDA Zone 7a, with roughly 153 frost-free days between an average last spring frost around May 5 and a first fall frost around October 5. That is a standard temperate season — most common vegetables finish comfortably, and a single main planting plus one succession round works well. Spokane lies near 47.7°N; higher-latitude gardens get longer midsummer days but a tighter shoulder season at this zone.

What grows in Spokane

Spokane falls in USDA Zone 7a, so the same hardiness constraints apply as the full Zone 7 guide. Vegetables, herbs, and fruit trees rated to Zone 7a (or hardier) will overwinter here in a typical year.

• Tomatoes, peppers, eggplant
• Okra
• Sweet potatoes
• Squash, melons
• Beans (lima + pole)
• Figs
• Pomegranates (in protected spots)
• Apples, peaches, plums, pears
• Blueberries (rabbiteye + highbush)
• Asparagus, rhubarb

What to plant in Spokane this week

Spokane's last frost is around May 5. This is the spring transplant window — start tomatoes and peppers indoors if you haven't, and direct-sow cold-tolerant crops now.

• When to plant tomatoes in zone 7
• When to plant peppers in zone 7
• When to plant basil in zone 7
• When to plant bush beans in zone 7
• When to plant cucumbers in zone 7

Full planting calendar for Spokane

Crop-by-crop sowing, transplant, and harvest dates calibrated to zone 7 averages:

• When to plant tomatoes in zone 7
• When to plant peppers in zone 7
• When to plant basil in zone 7
• When to plant garlic in zone 7
• When to plant lettuce in zone 7
• When to plant bush beans in zone 7
• When to plant cucumbers in zone 7
• When to plant summer squash in zone 7
• When to plant peas in zone 7
• When to plant carrots in zone 7

ZIP codes in Spokane

Drill down to the precise frost window and planting calendar for a specific ZIP in Spokane:

• 99201 — Spokane (Zone 7a)
• 99205 — Spokane (North) (Zone 6b)

Local microclimate notes

Zone tables give you the average — but Spokanegardens vary. South-facing walls and paved areas can run a full half-zone warmer than the published rating. Low-lying spots, frost pockets, and shaded north sides can run colder. If you've gardened here a few seasons, your own frost record — the last time you actually got frost damage — beats any national average.

Source and methodology

Hardiness zone from the USDA Plant Hardiness Zone Map (2023 revision). Frost-date and growing-season figures are modeled from Spokane's USDA hardiness zone and regional NOAA 1991-2020 climate normals — zone-level estimates, not a per-station record, so treat them as planning guidance and confirm against your own local frost history. Crop recommendations draw on US Cooperative Extension references, curated by the Growli editorial team. Last reviewed June 2026.

Other cities in Washington

• Bellevue, WA — USDA Zone 8b
• Bellingham, WA — USDA Zone 8b
• Bothell, WA — USDA Zone 8b
• Ellensburg, WA — USDA Zone 6b
• Everett, WA — USDA Zone 8b
• Federal Way, WA — USDA Zone 8b
• Kennewick, WA — USDA Zone 7a
• Kent, WA — USDA Zone 8b
• Kirkland, WA — USDA Zone 8b
• Marysville, WA — USDA Zone 8b
• Moses Lake, WA — USDA Zone 6b
• Olympia, WA — USDA Zone 8b
• All of Washington by zone

Related guides

• USDA Zone 7 — full plant + frost guide
• Browse USDA hardiness zones by city
• Look up a ZIP code
• How to start a vegetable garden — beginner guide