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When to Plant Lemon Thyme in Monroe County, AL

Monroe County, Alabama Zone 8a April

Your April gardening checklist

April rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Monroe County, Alabama.

Avg. last frost March 14
Avg. first frost November 14
Soil temp (4") 64°F
Watering Low
Pest pressure High
Daylight 12.8 hrs
Coming up in May — start thinking about
  • First harvests: lemon thyme

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Lemon thyme is a low-growing perennial herb with tiny, citrus-scented leaves. It combines the savory quality of thyme with a bright lemon flavor, excellent with fish and poultry.

Monroe County, Alabama is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 14, giving you a growing season of approximately 245 days.

At an elevation of 177 feet, Monroe County receives approximately 51.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Lemon Thyme may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Lemon Thyme, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Thyme root diseases.

Monroe County, AL (Zone 8a) Long season
245 days
Last Spring Frost March 14
245 growing days
First Fall Frost November 14

Monroe County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Transplant: Mar 13 🍅 Harvest: May 22 – Jul 24
Recommended (50%) ✓ Fits season (105 days to spare)
Transplant: Mar 21 🍅 Harvest: May 30 – Aug 1
Safe Start (90%) ✓ Fits season (105 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 16 – Aug 18

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 Monroe County

How your county's soil matches Lemon Thyme's growing requirements.

Soil pH

Your soil pH (5.6–6.3) is more acidic than Lemon Thyme prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Lemon Thyme

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

Succession Planting Lemon Thyme

4
successive plantings in your 245-day season

Sow every 8 weeks. Last sowing by Aug 16 to harvest before frost.

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 Lemon Thyme

Lemon Thyme 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 Lemon Thyme Needs Rainfall You Supplement Action
Jan 4.7" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 2.2" 5.1" 0" ✅ Rainfall sufficient
Apr 2.2" 4.3" 0" ✅ Rainfall sufficient
May 2.2" 3.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4" 0" ✅ Rainfall sufficient
Jul 2.2" 4.7" 0" ✅ Rainfall sufficient
Aug 2.2" 5.3" 0" ✅ Rainfall sufficient
Sep 2.2" 4.3" 0" ✅ Rainfall sufficient
Oct 2.2" 3.3" 0" ✅ Rainfall sufficient
Nov 2.2" 4" 0" ✅ Rainfall sufficient
Dec 4.7" 0" ❄️ Dormant

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

Lemon Thyme 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.

Lemon Thyme needs ~1,760 GDD — county provides 5,390 GDD Excellent fit

Lemon Thyme Planting Timeline — Monroe County, AL

Lemon Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 – Apr 4
Harvest May 30 May 30 – 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

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

245 days in Monroe County

Growing Tips for Lemon Thyme in Monroe County

Direct sow Lemon Thyme outdoors after March 14 in Monroe County when soil has warmed and frost danger has passed.

With Monroe County's clay soil (26% clay), work in 3-4 inches of compost before planting Lemon Thyme. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Monroe County, provide afternoon shade for Lemon Thyme and water deeply in the morning.

General growing tips

Start from cuttings or divisions. Plant in well-drained soil. Trim back after flowering. Use as a fragrant ground cover or edging plant along garden paths.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemon Thyme in Monroe County, AL?

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

What planting zone is Monroe County, AL?

Monroe County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 14.

🌱

Your Monroe County Garden Planner — Free

A 24-page printable planner built for Monroe 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 Monroe County, AL. Local conditions may vary. Last updated: April 2026.

Sources & credits

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