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When to Plant Lemon Thyme in Wicomico County, MD

Wicomico County, Maryland Zone 7b May

May in Wicomico County, Maryland — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Wicomico County, Maryland.

Avg. last frost April 9
Avg. first frost November 1
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 14.1 hrs
June will be here before you know it — start on
  • 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.

Wicomico County, Maryland is in USDA Zone 7b. The average last spring frost is April 9 and the first fall frost is November 1, giving you a growing season of approximately 206 days.

At an elevation of 728 feet, Wicomico County receives approximately 48.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92°F, providing good warmth for Lemon Thyme during the growing season.

Wicomico County, MD (Zone 7b) Long season
206 days
Last Spring Frost April 9
206 growing days
First Fall Frost November 1
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Wicomico County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (64 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 18 – Aug 20
Recommended (50%) ✓ Fits season (66 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 25 – Aug 27
Safe Start (90%) ✓ Fits season (79 days to spare)
Transplant: May 10 🍅 Harvest: Jul 19 – Sep 20

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 Wicomico County

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

Soil pH

Your soil pH (5.3–7.0) overlaps with Lemon Thyme's range (6.0–8.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). 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 206-day season

Sow every 8 weeks. Last sowing by Aug 03 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 3" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.1" 0" ❄️ Dormant
Apr 2.2" 3.9" 0" ✅ Rainfall sufficient
May 2.2" 4.5" 0" ✅ Rainfall sufficient
Jun 2.2" 5" 0" ✅ Rainfall sufficient
Jul 2.2" 4.9" 0" ✅ Rainfall sufficient
Aug 2.2" 3.7" 0" ✅ Rainfall sufficient
Sep 2.2" 4.5" 0" ✅ Rainfall sufficient
Oct 2.2" 3.6" 0" ✅ Rainfall sufficient
Nov 2.2" 4" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Wicomico 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 ~1,520 GDD — county provides 3,914 GDD Excellent fit

Lemon Thyme Planting Timeline — Wicomico County, MD

Lemon Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 16 Apr 16 – Apr 30
Harvest June 25 Jun 25 – Aug 27

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

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

206 days in Wicomico County

Growing Tips for Lemon Thyme in Wicomico County

Direct sow Lemon Thyme outdoors after April 09 in Wicomico County when soil has warmed and frost danger has passed.

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 Wicomico County, MD?

Wicomico County is in Zone 7b with an average last frost of April 9. Plan your Lemon Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wicomico County, MD?

Wicomico County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is April 9 and first fall frost is November 1.

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Your Wicomico County Garden Planner — Free

A 24-page printable planner built for Wicomico County (Zone 7b). 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 Wicomico County, MD. 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.