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When to Plant Rosemary in Troup County, GA

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.

Troup County, Georgia is in USDA Zone 7b. The average last spring frost is March 27 and the first fall frost is November 3, giving you a growing season of approximately 221 days.

At an elevation of 489 feet, Troup County receives approximately 54.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Troup County, GA (Zone 7b) Long season
221 days
Last Spring Frost March 27
221 growing days
First Fall Frost November 3

Troup County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 30 🍅 Harvest: Jun 22 – Nov 9
Recommended (50%) ✗ May not fit
Transplant: Apr 3 🍅 Harvest: Jun 26 – Nov 13
Safe Start (90%) ✗ May not fit
Transplant: Apr 24 🍅 Harvest: Jul 17 – Dec 4

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.

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
Rosemary needs ~2,080 GDD — county provides 3,536 GDD Excellent fit

Rosemary Planting Timeline โ€” Troup County, GA

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors April 3 Apr 3 โ€“ Apr 17
Harvest June 26 Jun 26 โ€“ Nov 13

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June Harvest
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

80โ€“180 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7b

Growing Season

221 days

Growing Tips for Troup County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Rosemary in Troup County, GA?

Troup County is in Zone 7b with an average last frost of March 27. Plan your Rosemary planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Troup County, GA?

Troup County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 27 and first fall frost is November 3.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Troup County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Troup County, GA. Local conditions may vary. Last updated: April 2026.