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When to plant Cumin in Carson, MS

Plant Cumin in Carson from February 22 to March 15 in spring. Carson sits in USDA Zone 8b, with last frost around March 8 and first frost on November 19. A second sowing from September 10 to September 24 extends the harvest into fall.

When to Plant Cumin in Carson, MS

Jefferson Davis County, Mississippi Zone 8b August

Top priorities for Jefferson Davis County, Mississippi gardeners in August

A quick August briefing for Jefferson Davis County, Mississippi gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 8
Avg. first frost November 19
Soil temp (4") 93°F
Watering Low
Pest pressure High
Daylight 13.2 hrs
  1. Bring in the cumin

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

September prep starts now
  • Fall sowing: 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.

Carson, Mississippi is in USDA Zone 8b. The average last spring frost is March 8 and the first fall frost is November 19, giving you a growing season of approximately 256 days.

At an elevation of 126 feet, Jefferson Davis County receives approximately 59.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Cumin during the growing season. Clay soil retains moisture well for Cumin, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Carson, MS (Zone 8b) Long season
256 days
Last Spring Frost March 8
256 growing days
First Fall Frost November 19

Carson Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.4

Drainage

Well Drained

Cumin Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Start indoors: Jan 25 Transplant: Feb 22 🍅 Harvest: Jun 7 – Aug 9
Recommended (50%) ✓ Fits season (95 days to spare)
Start indoors: Feb 1 Transplant: Mar 1 🍅 Harvest: Jun 14 – Aug 16
Safe Start (90%) ✓ Fits season (90 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: Jul 3 – Sep 4

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 Carson

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

Soil pH

Your soil pH (5.6–6.4) overlaps with Cumin's range (6.0–8.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 5.3" 0" ❄️ Dormant
Feb 5" 0" ❄️ Dormant
Mar 2.2" 6" 0" ✅ Rainfall sufficient
Apr 2.2" 4.1" 0" ✅ Rainfall sufficient
May 2.2" 4.2" 0" ✅ Rainfall sufficient
Jun 2.2" 5" 0" ✅ Rainfall sufficient
Jul 2.2" 5.7" 0" ✅ Rainfall sufficient
Aug 2.2" 6.4" 0" ✅ Rainfall sufficient
Sep 2.2" 4.7" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 3.9" 0" ✅ Rainfall sufficient
Dec 5.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Jefferson Davis 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 ~2,172 GDD — county provides 5,056 GDD Excellent fit

Cumin Planting Timeline — Carson, MS

Cumin Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 – Feb 15
Transplant Outdoors March 1 Mar 1 – Mar 15
Direct Sow February 22 Feb 22 – Mar 15
Harvest June 14 Jun 14 – Aug 16
Fall Sowing September 10 Sep 10 – Sep 24

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April
May
June Harvest
July Harvest
August Harvest
September Fall Sowing
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: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

256 days in Jefferson Davis County

Growing Tips for Cumin in Carson

Direct sow Cumin outdoors after March 08 in Jefferson Davis County when soil has warmed and frost danger has passed.

With Jefferson Davis County's clay soil (31% clay), work in 3-4 inches of compost before planting Cumin. Avoid tilling when soil is wet to prevent compaction.

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 Carson, MS?

In Carson, MS, plant Cumin after the last frost (around March 8) and before the first frost (around November 19). Best results when soil holds above 50°F.

What growing zone is Carson, MS for Cumin?

Carson sits in USDA Zone 8b. Cumin grows reliably in zones 5a through 11b, so it's a good fit here.

Can Cumin grow in Carson's climate?

Yes — Cumin grows well in Carson's temperate climate. Carson averages a 256-day frost-free season, with last frost around March 8 and first frost around November 19.

🌱

Your Jefferson Davis County Garden Planner — Free

A 22-page printable planner built for Jefferson Davis County (Zone 8b). 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 Jefferson Davis County, MS. Local conditions may vary. Last updated: August 2026.