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When to plant Thyme in Macclenny,

Macclenny sits in cold Zone 9a. Plant Thyme March 8–March 22 for the single annual harvest; the November 27 first frost closes the window.

When to Plant Thyme in Macclenny, FL

Thyme
Macclenny, FL Zone 9a June

What to do in June

Your garden in Macclenny, FL is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost March 1
Avg. first frost November 27
Soil temp (4") 83°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. It's harvest week for thyme

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

Coming up in July — start thinking about
  • First harvests: thyme

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Thyme is a low-growing perennial herb with tiny, aromatic leaves and a warm, earthy flavor. It is one of the most versatile culinary and medicinal herbs.

Macclenny, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 27, giving you a growing season of approximately 271 days.

At an elevation of 177 feet, Baker County receives approximately 55.8 inches of rainfall annually with predominantly sand soil. Summer highs average 94°F, providing good warmth for Thyme during the growing season. Sandy soil warms quickly in spring — great for early planting — but Thyme will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Thyme root diseases.

Macclenny, FL (Zone 9a) Year-round
271 days
Last Spring Frost March 1
271 growing days
First Fall Frost November 27
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Macclenny Soil Profile

Soil Type

Sand

Soil pH

4.9-6.1

Drainage

Well Drained

Thyme Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Transplant: Feb 21 🍅 Harvest: May 2 – Jul 4
Recommended (50%) ✓ Fits season (131 days to spare)
Transplant: Mar 8 🍅 Harvest: May 17 – Jul 19
Safe Start (90%) ✓ Fits season (129 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 11 – Aug 13

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 Macclenny

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

Soil pH

Your soil pH (4.9–6.1) is more acidic than Thyme prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Baker County warms quickly in spring but drains fast. Thyme will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Thyme.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Thyme.

How to Plant Thyme

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

Succession Planting Thyme

4
successive plantings in your 271-day season

Sow every 8 weeks. Last sowing by Aug 29 to harvest before frost.

Thyme 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 Thyme

Thyme 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 Thyme Needs Rainfall You Supplement Action
Jan 2.5" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 1.3" 3.8" 0" ✅ Rainfall sufficient
Apr 1.3" 2.5" 0" ✅ Rainfall sufficient
May 1.3" 3.9" 0" ✅ Rainfall sufficient
Jun 1.3" 7.8" 0" ✅ Rainfall sufficient
Jul 1.3" 9.7" 0" ✅ Rainfall sufficient
Aug 1.3" 7.4" 0" ✅ Rainfall sufficient
Sep 1.3" 6.5" 0" ✅ Rainfall sufficient
Oct 1.3" 4.1" 0" ✅ Rainfall sufficient
Nov 1.3" 2.2" 0" ✅ Rainfall sufficient
Dec 2.5" 0" ❄️ Dormant

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

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.

Thyme needs ~1,640 GDD — county provides 5,555 GDD Excellent fit

Thyme Planting Timeline — Macclenny, FL

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 8 Mar 8 – Mar 22
Harvest May 17 May 17 – Jul 19

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May Harvest
June Harvest
July Harvest
August
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

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

271 days in Baker County

Growing Tips for Thyme in Macclenny

Direct sow Thyme outdoors after March 01 in Baker County when soil has warmed and frost danger has passed.

Sandy soil in Baker County dries quickly — mulch Thyme with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With 56" of annual rainfall in Baker County, ensure good drainage for Thyme — excess moisture can promote root rot and fungal diseases.

General growing tips

Start from seed, cuttings, or divisions. Plant in well-drained, lean soil. Prune lightly after flowering. Replace plants every 3-4 years when they become woody.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

When should I plant Thyme in Macclenny, ?

In Macclenny, , plant Thyme after the last frost (around March 1) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Macclenny, for Thyme?

Macclenny sits in USDA Zone 9a. Thyme grows reliably in zones 4a through 9b, so it's a good fit here.

Can Thyme grow in Macclenny's climate?

Yes — Thyme grows well in Macclenny's temperate climate. Macclenny averages a 271-day frost-free season, with last frost around March 1 and first frost around November 27.

🌱

Your Baker County Garden Planner — Free

A 22-page printable planner built for Baker County (Zone 9a). 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 Baker County, FL. Local conditions may vary. Last updated: June 2026.