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When to Plant Oregano in Copiah County, MS

Copiah County, Mississippi Zone 8b May

What to do in May

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 14
Avg. first frost November 12
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Basket week: oregano

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Get ahead of June
  • First harvests: oregano

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Oregano is a robust perennial herb essential to Italian and Greek cuisine. Its pungent, savory leaves intensify in flavor when dried.

Copiah County, Mississippi is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 12, giving you a growing season of approximately 243 days.

At an elevation of 335 feet, Copiah County receives approximately 60.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Oregano during the growing season. Clay soil retains moisture well for Oregano, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Oregano root diseases.

Copiah County, MS (Zone 8b) Long season
243 days
Last Spring Frost March 14
243 growing days
First Fall Frost November 12

Copiah County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Transplant: Mar 14 🍅 Harvest: May 16 – Jul 25
Recommended (50%) ✓ Fits season (103 days to spare)
Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1
Safe Start (90%) ✓ Fits season (94 days to spare)
Transplant: Apr 17 🍅 Harvest: Jun 19 – Aug 28

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 Copiah County

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Oregano prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Oregano.

How to Plant Oregano

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

Succession Planting Oregano

4
successive plantings in your 243-day season

Sow every 6.9 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Oregano

Oregano needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Oregano Needs Rainfall You Supplement Action
Jan 5.4" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 1.3" 5.8" 0" ✅ Rainfall sufficient
Apr 1.3" 5.1" 0" ✅ Rainfall sufficient
May 1.3" 4.3" 0" ✅ Rainfall sufficient
Jun 1.3" 5.5" 0" ✅ Rainfall sufficient
Jul 1.3" 5.7" 0" ✅ Rainfall sufficient
Aug 1.3" 5.6" 0" ✅ Rainfall sufficient
Sep 1.3" 5.1" 0" ✅ Rainfall sufficient
Oct 1.3" 4.1" 0" ✅ Rainfall sufficient
Nov 1.3" 4.4" 0" ✅ Rainfall sufficient
Dec 5.2" 0" ❄️ Dormant

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

Oregano 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.

Oregano needs ~1,425 GDD — county provides 4,617 GDD Excellent fit

Oregano Planting Timeline — Copiah County, MS

Oregano Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 – Apr 4
Harvest May 23 May 23 – Aug 1

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

243 days in Copiah County

Growing Tips for Oregano in Copiah County

Direct sow Oregano outdoors after March 14 in Copiah County when soil has warmed and frost danger has passed.

With Copiah County's clay soil (28% clay), work in 3-4 inches of compost before planting Oregano. Avoid tilling when soil is wet to prevent compaction.

With 61" of annual rainfall in Copiah County, ensure good drainage for Oregano — excess moisture can promote root rot and fungal diseases.

General growing tips

Start from seed, cuttings, or divisions. Harvest just before flowering for strongest flavor. Cut plants back to a few inches in spring to encourage vigorous new growth.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Oregano in Copiah County, MS?

Copiah County is in Zone 8b with an average last frost of March 14. Plan your Oregano planting based on this frost date — see the calendar above for exact timing.

What planting zone is Copiah County, MS?

Copiah County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 14 and first fall frost is November 12.

🌱

Your Copiah County Garden Planner — Free

A 24-page printable planner built for Copiah 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 Copiah County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

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