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When to plant Cumin in Nez Perce County, ID

Nez Perce County sits in USDA Zone 7b. Plant Cumin between April 28 (after last frost on May 12) and May 19. A second sowing from July 18 to August 1 extends the harvest into fall.

When to Plant Cumin in Nez Perce County, ID

Cumin is a warm-season annual herb whose seeds are one of the most widely used spices globally. It requires a long, hot growing season of 3-4 months.

Nez Perce County, Idaho is in USDA Zone 7b. The average last spring frost is May 12 and the first fall frost is September 26, giving you a growing season of approximately 137 days.

At an elevation of 4,819 feet, Nez Perce County receives approximately 16.7 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Cumin during the growing season. With low rainfall, drip irrigation is essential for growing Cumin successfully. Mulch heavily to conserve soil moisture.

Nez Perce County, ID (Zone 7b) Short season
137 days
Last Spring Frost May 12
137 growing days
First Fall Frost September 26

Nez Perce County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Cumin Planting Timeline — Nez Perce County, ID

Cumin Planting Calendar

Activity When Date Range
Start Indoors April 7 Apr 7 – Apr 21
Transplant Outdoors May 5 May 5 – May 19
Direct Sow April 28 Apr 28 – May 19
Harvest August 18 Aug 18 – Oct 20
Fall Sowing July 18 Jul 18 – Aug 1

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors Direct Sow
May Transplant Outdoors Direct Sow
June
July Fall Sowing
August Fall Sowing Harvest
September Harvest
October Harvest
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–8 · Your soil: N/A

🗺️ USDA Zone

Zone 7b

📆 Growing Season

137 days in Nez Perce County

Growing Tips for Nez Perce County

Start seeds indoors 4 weeks before last frost. Transplant after all danger of frost. Harvest when seed heads turn brown. Requires consistent warmth for proper seed development.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cumin in Nez Perce County, ID?

Nez Perce County is in Zone 7b with an average last frost of May 12. Plan your Cumin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nez Perce County, ID?

Nez Perce County, Idaho is in USDA Hardiness Zone 7b. The average last spring frost is May 12 and first fall frost is September 26.

When should I plant Cumin in Nez Perce County, ID?

In Nez Perce County, ID, plant Cumin after the last frost (around May 12) and before the first frost (around September 26). Best results when soil holds above 50°F.

What growing zone is Nez Perce County, ID for Cumin?

Nez Perce County sits in USDA Zone 7b. Cumin grows reliably in zones 5a through 11b, so it's a good fit here.

Can Cumin grow in Nez Perce County's climate?

Yes — Cumin grows well in Nez Perce County's temperate climate. Nez Perce County averages a 137-day frost-free season, with last frost around May 12 and first frost around September 26.

🌱

Your Nez Perce County Garden Planner — Free

A 22-page printable planner built for Nez Perce County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Nez Perce County, ID. Local conditions may vary. Last updated: July 2026.

Sources & credits

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