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When to Plant Oregano in Calhoun County, AL

Calhoun County, Alabama Zone 8a May

Your May gardening checklist

Your garden in Calhoun County, Alabama is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 31
Avg. first frost October 31
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 13.8 hrs
June will be here before you know it — start on
  • 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.

Calhoun County, Alabama is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is October 31, giving you a growing season of approximately 214 days.

At an elevation of 440 feet, Calhoun County receives approximately 52.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°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.

Calhoun County, AL (Zone 8a) Long season
214 days
Last Spring Frost March 31
214 growing days
First Fall Frost October 31

Calhoun County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Transplant: Apr 1 🍅 Harvest: Jun 3 – Aug 12
Recommended (50%) ✓ Fits season (74 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 9 – Aug 18
Safe Start (90%) ✓ Fits season (70 days to spare)
Transplant: Apr 25 🍅 Harvest: Jun 27 – Sep 5

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 Calhoun County

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

Soil pH

Your soil pH (5.3–6.4) is more acidic than Oregano prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). 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 214-day season

Sow every 6.9 weeks. Last sowing by Aug 02 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/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 4" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 1.3" 5.7" 0" ✅ Rainfall sufficient
Apr 1.3" 3.8" 0" ✅ Rainfall sufficient
May 1.3" 3.7" 0" ✅ Rainfall sufficient
Jun 1.3" 5" 0" ✅ Rainfall sufficient
Jul 1.3" 5.4" 0" ✅ Rainfall sufficient
Aug 1.3" 5.1" 0" ✅ Rainfall sufficient
Sep 1.3" 3.6" 0" ✅ Rainfall sufficient
Oct 1.3" 3.3" 0" ✅ Rainfall sufficient
Nov 4.2" 0" ❄️ Dormant
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Calhoun 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 ~1,538 GDD — county provides 4,387 GDD Excellent fit

Oregano Planting Timeline — Calhoun County, AL

Oregano Planting Calendar

Activity When Date Range
Transplant Outdoors April 7 Apr 7 – Apr 21
Harvest June 9 Jun 9 – Aug 18

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May
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 8a

📆 Growing Season

214 days in Calhoun County

Growing Tips for Oregano in Calhoun County

Direct sow Oregano outdoors after March 31 in Calhoun County when soil has warmed and frost danger has passed.

With Calhoun County's clay soil (27% clay), work in 3-4 inches of compost before planting Oregano. Avoid tilling when soil is wet to prevent compaction.

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 Calhoun County, AL?

Calhoun County is in Zone 8a with an average last frost of March 31. Plan your Oregano planting based on this frost date — see the calendar above for exact timing.

What planting zone is Calhoun County, AL?

Calhoun County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is October 31.

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Your Calhoun County Garden Planner — Free

A 24-page printable planner built for Calhoun County (Zone 8a). 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 Calhoun County, AL. Local conditions may vary. Last updated: May 2026.

Sources & credits

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