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When to plant Cumin in Combs, AR

Combs sits in USDA Zone 7b. Plant Cumin between March 23 (after last frost on April 6) and April 13. A second sowing from August 20 to September 3 extends the harvest into fall.

When to Plant Cumin in Combs, AR

Madison County, Arkansas Zone 7b June

Top priorities for Madison County, Arkansas gardeners in June

Welcome to June in Zone 7b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 6
Avg. first frost October 29
Soil temp (4") 75°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
A few tasks this June that'll pay off in July
  • First harvests: cumin

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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.

Combs, Arkansas is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is October 29, giving you a growing season of approximately 206 days.

At an elevation of 801 feet, Madison County receives approximately 54.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Cumin during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Combs, AR (Zone 7b) Long season
206 days
Last Spring Frost April 6
206 growing days
First Fall Frost October 29

Combs Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Cumin Planting Risk Windows

Early Start (70% safe) ✓ Fits season (51 days to spare)
Start indoors: Feb 19 Transplant: Mar 19 🍅 Harvest: Jul 2 – Sep 3
Recommended (50%) ✓ Fits season (45 days to spare)
Start indoors: Mar 2 Transplant: Mar 30 🍅 Harvest: Jul 13 – Sep 14
Safe Start (90%) ✓ Fits season (45 days to spare)
Start indoors: Mar 17 Transplant: Apr 14 🍅 Harvest: Jul 28 – Sep 29

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Combs

How your county's soil matches Cumin's growing requirements.

Soil pH

Your soil pH (5.3–6.5) is more acidic than Cumin prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Madison County is excellent for Cumin — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Cumin.

How to Plant Cumin

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Cumin Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cumin

Cumin needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Cumin Needs Rainfall You Supplement Action
Jan 3.9" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 2.2" 4" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 5.1" 0" ✅ Rainfall sufficient
Jul 2.2" 6.3" 0" ✅ Rainfall sufficient
Aug 2.2" 5.7" 0" ✅ Rainfall sufficient
Sep 2.2" 4.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.1" 0" ✅ Rainfall sufficient
Nov 4.6" 0" ❄️ Dormant
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Madison County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cumin Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Cumin needs ~1,925 GDD — county provides 3,605 GDD Excellent fit

Cumin Planting Timeline — Combs, AR

Cumin Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors March 30 Mar 30 – Apr 13
Direct Sow March 23 Mar 23 – Apr 13
Harvest July 13 Jul 13 – Sep 14
Fall Sowing August 20 Aug 20 – Sep 3

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

206 days in Madison County

Growing Tips for Cumin in Combs

Direct sow Cumin outdoors after April 06 in Madison County when soil has warmed and frost danger has passed.

Common pests for Cumin in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

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 →

When should I plant Cumin in Combs, AR?

In Combs, AR, plant Cumin after the last frost (around April 6) and before the first frost (around October 29). Best results when soil holds above 50°F.

What growing zone is Combs, AR for Cumin?

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

Can Cumin grow in Combs's climate?

Yes — Cumin grows well in Combs's temperate climate. Combs averages a 206-day frost-free season, with last frost around April 6 and first frost around October 29.

🌱

Your Madison County Garden Planner — Free

A 22-page printable planner built for Madison 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 Madison County, AR. Local conditions may vary. Last updated: June 2026.