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When to Plant Oregano in Montgomery County, AR

Montgomery County, Arkansas Zone 8a May

Your May game plan for Montgomery County, Arkansas

Here's what deserves your attention in Montgomery County, Arkansas this month. Everything below is tailored to Zone 8a and timed around your local frost dates.

Avg. last frost March 27
Avg. first frost November 6
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
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  • 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.

Montgomery County, Arkansas is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.

At an elevation of 850 feet, Montgomery County receives approximately 46.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Oregano during the growing season.

Montgomery County, AR (Zone 8a) Long season
224 days
Last Spring Frost March 27
224 growing days
First Fall Frost November 6
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Montgomery County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (87 days to spare)
Transplant: Mar 24 🍅 Harvest: May 26 – Aug 4
Recommended (50%) ✓ Fits season (84 days to spare)
Transplant: Apr 3 🍅 Harvest: Jun 5 – Aug 14
Safe Start (90%) ✓ Fits season (84 days to spare)
Transplant: Apr 22 🍅 Harvest: Jun 24 – Sep 2

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 Montgomery County

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

Soil pH

Your soil pH (5.3–6.9) overlaps with Oregano's range (6.0–8.0), though not a perfect match.

Soil Texture

The silt loam soil in Montgomery 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 224-day season

Sow every 6.9 weeks. Last sowing by Aug 08 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
0.9″/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 3.4" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 1.3" 4.4" 0" ✅ Rainfall sufficient
Apr 1.3" 3.6" 0" ✅ Rainfall sufficient
May 1.3" 3.8" 0" ✅ Rainfall sufficient
Jun 1.3" 4.4" 0" ✅ Rainfall sufficient
Jul 1.3" 4.8" 0" ✅ Rainfall sufficient
Aug 1.3" 4.9" 0" ✅ Rainfall sufficient
Sep 1.3" 3.6" 0" ✅ Rainfall sufficient
Oct 1.3" 3.3" 0" ✅ Rainfall sufficient
Nov 1.3" 3.9" 0" ✅ Rainfall sufficient
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Montgomery 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 ~1,200 GDD — county provides 3,584 GDD Excellent fit

Oregano Planting Timeline — Montgomery County, AR

Oregano Planting Calendar

Activity When Date Range
Transplant Outdoors April 3 Apr 3 – Apr 17
Harvest June 5 Jun 5 – Aug 14

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
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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: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

224 days in Montgomery County

Growing Tips for Oregano in Montgomery County

Direct sow Oregano outdoors after March 27 in Montgomery County when soil has warmed and frost danger has passed.

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 Montgomery County, AR?

Montgomery County is in Zone 8a with an average last frost of March 27. Plan your Oregano planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montgomery County, AR?

Montgomery County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 6.

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Your Montgomery County Garden Planner — Free

A 24-page printable planner built for Montgomery 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 Montgomery County, AR. 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.