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When to Plant Thyme in Kent County, MD

Kent County, Maryland Zone 7b May

May in the garden — Kent County, Maryland

Each item below is timed to Kent County, Maryland's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 2
Avg. first frost November 4
Soil temp (4") 67°F
Watering Low
Pest pressure Moderate
Daylight 14.2 hrs
A few tasks this May that'll pay off in June
  • 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.

Kent County, Maryland is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 4, giving you a growing season of approximately 216 days.

At an elevation of 1,005 feet, Kent County receives approximately 44.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Thyme during the growing season.

Kent County, MD (Zone 7b) Long season
216 days
Last Spring Frost April 2
216 growing days
First Fall Frost November 4
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Kent 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 (76 days to spare)
Transplant: Apr 4 🍅 Harvest: Jun 13 – Aug 15
Recommended (50%) ✓ Fits season (76 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 18 – Aug 20
Safe Start (90%) ✓ Fits season (71 days to spare)
Transplant: Apr 25 🍅 Harvest: Jul 4 – Sep 5

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 Kent County

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

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Thyme.

How to Plant Thyme

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

Succession Planting Thyme

3
successive plantings in your 216-day season

Sow every 8 weeks. Last sowing by Aug 06 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 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 2.8" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 3.7" 0" ❄️ Dormant
Apr 1.3" 3.6" 0" ✅ Rainfall sufficient
May 1.3" 4" 0" ✅ Rainfall sufficient
Jun 1.3" 4.1" 0" ✅ Rainfall sufficient
Jul 1.3" 4.6" 0" ✅ Rainfall sufficient
Aug 1.3" 4.4" 0" ✅ Rainfall sufficient
Sep 1.3" 4.1" 0" ✅ Rainfall sufficient
Oct 1.3" 3.8" 0" ✅ Rainfall sufficient
Nov 1.3" 3.5" 0" ✅ Rainfall sufficient
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Kent 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 4,428 GDD Excellent fit

Thyme Planting Timeline — Kent County, MD

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 9 Apr 9 – Apr 23
Harvest June 18 Jun 18 – Aug 20

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

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

216 days in Kent County

Growing Tips for Thyme in Kent County

Direct sow Thyme outdoors after April 02 in Kent County when soil has warmed and frost danger has passed.

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 →

Frequently Asked Questions

When should I plant Thyme in Kent County, MD?

Kent County is in Zone 7b with an average last frost of April 2. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kent County, MD?

Kent County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 4.

🌱

Your Kent County Garden Planner — Free

A 24-page printable planner built for Kent 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 Kent 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.