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When to Plant Rosemary in Geneva County, AL

Geneva County, Alabama Zone 8b May

Top priorities for Geneva County, Alabama gardeners in May

Your garden in Geneva County, Alabama is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 15
Avg. first frost November 13
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Get ahead of June
  • 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.

Geneva County, Alabama is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 224 feet, Geneva County receives approximately 52.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Rosemary may need afternoon shade and extra watering during peak heat. 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.

Geneva County, AL (Zone 8b) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13
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Geneva County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (13 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 5 – Oct 23
Recommended (50%) ✓ Fits season (12 days to spare)
Transplant: Mar 22 🍅 Harvest: Jun 14 – Nov 1
Safe Start (90%) ✓ Fits season (3 days to spare)
Transplant: Apr 18 🍅 Harvest: Jul 11 – Nov 28

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 Geneva County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Rosemary's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). 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 243-day season

Sow every 9.1 weeks. Last sowing by May 17 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 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 4.5" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 1.3" 5.3" 0" ✅ Rainfall sufficient
Apr 1.3" 4" 0" ✅ Rainfall sufficient
May 1.3" 4.2" 0" ✅ Rainfall sufficient
Jun 1.3" 4.1" 0" ✅ Rainfall sufficient
Jul 1.3" 5.7" 0" ✅ Rainfall sufficient
Aug 1.3" 5.3" 0" ✅ Rainfall sufficient
Sep 1.3" 3.8" 0" ✅ Rainfall sufficient
Oct 1.3" 3.6" 0" ✅ Rainfall sufficient
Nov 1.3" 4" 0" ✅ Rainfall sufficient
Dec 4.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Geneva 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 ~2,958 GDD — county provides 5,528 GDD Excellent fit

Rosemary Planting Timeline — Geneva County, AL

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 – Apr 5
Harvest June 14 Jun 14 – Nov 1

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

243 days in Geneva County

Growing Tips for Rosemary in Geneva County

Direct sow Rosemary outdoors after March 15 in Geneva County when soil has warmed and frost danger has passed.

With Geneva 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 summer highs reaching 97°F in Geneva County, provide afternoon shade for Rosemary and water deeply in the morning.

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 Geneva County, AL?

Geneva County is in Zone 8b with an average last frost of March 15. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.

What planting zone is Geneva County, AL?

Geneva County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 13.

🌱

Your Geneva County Garden Planner — Free

A 24-page printable planner built for Geneva 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 Geneva County, AL. 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.