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When to Plant Rosemary in Lauderdale County, MS

Lauderdale County, Mississippi Zone 8b May

Lauderdale County, Mississippi gardeners: here's your May plan

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 20
Avg. first frost November 8
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
To set up a strong June, finish these tasks
  • First harvests: rosemary

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Rosemary is an aromatic evergreen shrub with needle-like leaves and a piney, citrus flavor. It is a Mediterranean herb that thrives in warm, dry conditions.

Lauderdale County, Mississippi is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 8, giving you a growing season of approximately 233 days.

At an elevation of 180 feet, Lauderdale County receives approximately 56.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Rosemary during the growing season. Clay soil retains moisture well for Rosemary, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rosemary root diseases.

Lauderdale County, MS (Zone 8b) Long season
233 days
Last Spring Frost March 20
233 growing days
First Fall Frost November 8
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Lauderdale County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (6 days to spare)
Transplant: Mar 16 🍅 Harvest: Jun 8 – Oct 26
Recommended (50%) ✓ Fits season (2 days to spare)
Transplant: Mar 27 🍅 Harvest: Jun 19 – Nov 6
Safe Start (90%) ✗ May not fit
Transplant: Apr 19 🍅 Harvest: Jul 12 – Nov 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 Lauderdale County

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

Soil pH

Your soil pH (5.2–6.8) overlaps with Rosemary's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Rosemary.

How to Plant Rosemary

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

Succession Planting Rosemary

3
successive plantings in your 233-day season

Sow every 9.1 weeks. Last sowing by May 12 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Rosemary

Rosemary 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 Rosemary Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 1.3" 5.6" 0" ✅ Rainfall sufficient
Apr 1.3" 4.7" 0" ✅ Rainfall sufficient
May 1.3" 4.1" 0" ✅ Rainfall sufficient
Jun 1.3" 4.6" 0" ✅ Rainfall sufficient
Jul 1.3" 5.3" 0" ✅ Rainfall sufficient
Aug 1.3" 5.7" 0" ✅ Rainfall sufficient
Sep 1.3" 4.5" 0" ✅ Rainfall sufficient
Oct 1.3" 3.9" 0" ✅ Rainfall sufficient
Nov 1.3" 4.7" 0" ✅ Rainfall sufficient
Dec 4.7" 0" ❄️ Dormant

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

Rosemary 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.

Rosemary needs ~2,568 GDD — county provides 4,601 GDD Excellent fit

Rosemary Planting Timeline — Lauderdale County, MS

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors March 27 Mar 27 – Apr 10
Harvest June 19 Jun 19 – Nov 6

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May
June Harvest
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

80–180 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

233 days in Lauderdale County

Growing Tips for Rosemary in Lauderdale County

Direct sow Rosemary outdoors after March 20 in Lauderdale County when soil has warmed and frost danger has passed.

With Lauderdale County's clay soil (30% clay), work in 3-4 inches of compost before planting Rosemary. Avoid tilling when soil is wet to prevent compaction.

With 57" of annual rainfall in Lauderdale County, ensure good drainage for Rosemary — excess moisture can promote root rot and fungal diseases.

General growing tips

Grow in well-drained soil and avoid overwatering. In cold climates, grow in containers and bring indoors for winter. Propagate from stem cuttings for faster results than seed.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rosemary in Lauderdale County, MS?

Lauderdale County is in Zone 8b with an average last frost of March 20. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lauderdale County, MS?

Lauderdale County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 8.

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Your Lauderdale County Garden Planner — Free

A 24-page printable planner built for Lauderdale County (Zone 8b). 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 Lauderdale County, MS. 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.