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When to Plant Cumin in Pearl River County, MS

Pearl River County, Mississippi Zone 9a May

Pearl River County, Mississippi gardeners: here's your May plan

Here's what deserves your attention in Pearl River County, Mississippi this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost March 3
Avg. first frost November 24
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
June will be here before you know it — start on
  • 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.

Pearl River County, Mississippi is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 24, giving you a growing season of approximately 266 days.

At an elevation of 243 feet, Pearl River County receives approximately 56.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97°F, so Cumin may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cumin will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Pearl River County, MS (Zone 9a) Long season
266 days
Last Spring Frost March 3
266 growing days
First Fall Frost November 24
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Pearl River County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Start indoors: Jan 20 Transplant: Feb 10 🍅 Harvest: May 26 – Jul 28
Recommended (50%) ✓ Fits season (105 days to spare)
Start indoors: Feb 3 Transplant: Feb 24 🍅 Harvest: Jun 9 – Aug 11
Safe Start (90%) ✓ Fits season (103 days to spare)
Start indoors: Feb 26 Transplant: Mar 19 🍅 Harvest: Jul 2 – Sep 3

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 Pearl River County

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

Soil pH

Your soil pH (4.8–6.0) is more acidic than Cumin prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Pearl River County warms quickly in spring but drains fast. Cumin will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Cumin prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Cumin.

How to Plant Cumin

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/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 4.2" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 2.2" 5.1" 0" ✅ Rainfall sufficient
Apr 2.2" 4.5" 0" ✅ Rainfall sufficient
May 2.2" 4.6" 0" ✅ Rainfall sufficient
Jun 2.2" 5.6" 0" ✅ Rainfall sufficient
Jul 2.2" 5.5" 0" ✅ Rainfall sufficient
Aug 2.2" 4.7" 0" ✅ Rainfall sufficient
Sep 2.2" 4.7" 0" ✅ Rainfall sufficient
Oct 2.2" 4.2" 0" ✅ Rainfall sufficient
Nov 2.2" 4.6" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Pearl River 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 ~2,502 GDD — county provides 6,051 GDD Excellent fit

Cumin Planting Timeline — Pearl River County, MS

Cumin Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors February 24 Feb 24 – Mar 10
Direct Sow February 10 Feb 10 – Mar 3
Harvest June 9 Jun 9 – Aug 11
Fall Sowing September 29 Sep 29 – Oct 13

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April
May
June Harvest
July Harvest
August Harvest
September Fall Sowing
October Fall Sowing
November
December
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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 9a

📆 Growing Season

266 days in Pearl River County

Growing Tips for Cumin in Pearl River County

Direct sow Cumin outdoors after March 03 in Pearl River County when soil has warmed and frost danger has passed.

Sandy soil in Pearl River County dries quickly — mulch Cumin with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97°F in Pearl River County, provide afternoon shade for Cumin and water deeply in the morning.

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 →

Frequently Asked Questions

When should I plant Cumin in Pearl River County, MS?

Pearl River County is in Zone 9a with an average last frost of March 3. Plan your Cumin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pearl River County, MS?

Pearl River County, Mississippi is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 24.

🌱

Your Pearl River County Garden Planner — Free

A 24-page printable planner built for Pearl River County (Zone 9a). 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 Pearl River County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.