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When to Plant Lemon Thyme in Fulton County, GA

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.

Fulton County, Georgia is in USDA Zone 7b. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.

At an elevation of 457 feet, Fulton County receives approximately 53.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Lemon Thyme during the growing season. 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.

Fulton County, GA (Zone 7b) Long season
228 days
Last Spring Frost March 23
228 growing days
First Fall Frost November 6

Fulton County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Transplant: Mar 24 🍅 Harvest: Jun 2 – Aug 4
Recommended (50%) ✓ Fits season (88 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 8 – Aug 10
Safe Start (90%) ✓ Fits season (86 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 27 – Aug 29

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 Fulton County

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

Soil pH

Your soil pH (5.7โ€“6.5) overlaps with Lemon Thyme's range (6.0โ€“8.0), though not a perfect match.

Soil Texture

The clay loam soil in Fulton County is excellent for Lemon Thyme โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

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

Organic Matter

Organic matter is moderate (2.8%). 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

3
successive plantings in your 228-day season

Sow every 8 weeks. Last sowing by Aug 08 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/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 โ€” 5.1" 0" โ„๏ธ Dormant
Feb โ€” 3.8" 0" โ„๏ธ Dormant
Mar 2.2" 5.5" 0" โœ… Rainfall sufficient
Apr 2.2" 4.6" 0" โœ… Rainfall sufficient
May 2.2" 3.9" 0" โœ… Rainfall sufficient
Jun 2.2" 4.6" 0" โœ… Rainfall sufficient
Jul 2.2" 5.2" 0" โœ… Rainfall sufficient
Aug 2.2" 5.6" 0" โœ… Rainfall sufficient
Sep 2.2" 3.9" 0" โœ… Rainfall sufficient
Oct 2.2" 3.1" 0" โœ… Rainfall sufficient
Nov 2.2" 3.7" 0" โœ… Rainfall sufficient
Dec โ€” 4.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Fulton County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,400 GDD — county provides 3,990 GDD Excellent fit

Lemon Thyme Planting Timeline โ€” Fulton County, GA

Lemon Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Harvest June 8 Jun 8 โ€“ Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

70โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

228 days in Fulton County

Growing Tips for Lemon Thyme in Fulton County

Direct sow Lemon Thyme outdoors after March 23 in Fulton County when soil has warmed and frost danger has passed.

With Fulton 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.

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 Fulton County, GA?

Fulton County is in Zone 7b with an average last frost of March 23. Plan your Lemon Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fulton County, GA?

Fulton County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 23 and first fall frost is November 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fulton County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Fulton County, GA. Local conditions may vary. Last updated: April 2026.