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When to Plant Borage in Thomas County, GA

Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.

Thomas County, Georgia is in USDA Zone 8b. The average last spring frost is March 4 and the first fall frost is November 22, giving you a growing season of approximately 263 days.

At an elevation of 302 feet, Thomas County receives approximately 58.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95ยฐF, so Borage may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Borage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Borage root diseases.

Thomas County, GA (Zone 8b) Long season
263 days
Last Spring Frost March 4
263 growing days
First Fall Frost November 22

Thomas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (169 days to spare)
Start indoors: Jan 17 Transplant: Feb 14 🍅 Harvest: Apr 11 – May 30
Recommended (50%) ✓ Fits season (165 days to spare)
Start indoors: Jan 28 Transplant: Feb 25 🍅 Harvest: Apr 22 – Jun 10
Safe Start (90%) ✓ Fits season (168 days to spare)
Start indoors: Feb 18 Transplant: Mar 18 🍅 Harvest: May 13 – Jul 1

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
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Borage needs ~1,169 GDD — county provides 5,588 GDD Excellent fit

Borage Planting Timeline โ€” Thomas County, GA

Borage Planting Calendar

Activity When Date Range
Start Indoors January 28 Jan 28 โ€“ Feb 11
Transplant Outdoors February 25 Feb 25 โ€“ Mar 11
Direct Sow February 18 Feb 18 โ€“ Mar 11
Fall Sowing September 13 Sep 13 โ€“ Sep 27
Harvest April 22 Apr 22 โ€“ Jun 10

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July โ€”
August โ€”
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

50โ€“60 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

263 days

Growing Tips for Thomas County

Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Borage in Thomas County, GA?

Thomas County is in Zone 8b with an average last frost of March 4. Plan your Borage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Thomas County, GA?

Thomas County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 4 and first fall frost is November 22.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Thomas County gardeners in Zone 8b 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 Thomas County, GA. Local conditions may vary. Last updated: April 2026.