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When to Plant Borage in Brantley County, GA

Brantley County, Georgia Zone 9a May

This month in Brantley County, Georgia

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Brantley County, Georgia.

Avg. last frost February 19
Avg. first frost November 29
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Collect borage at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Brantley County, Georgia is in USDA Zone 9a. The average last spring frost is February 19 and the first fall frost is November 29, giving you a growing season of approximately 283 days.

At an elevation of 238 feet, Brantley County receives approximately 58.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90°F, providing good warmth for Borage during the growing season. Sandy soil warms quickly in spring — great for early planting — but Borage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Borage root diseases.

Brantley County, GA (Zone 9a) Year-round
283 days
Last Spring Frost February 19
283 growing days
First Fall Frost November 29

Brantley County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (190 days to spare)
Start indoors: Jan 10 Transplant: Jan 31 🍅 Harvest: Mar 28 – May 16
Recommended (50%) ✓ Fits season (185 days to spare)
Start indoors: Jan 22 Transplant: Feb 12 🍅 Harvest: Apr 9 – May 28
Safe Start (90%) ✓ Fits season (182 days to spare)
Start indoors: Feb 16 Transplant: Mar 9 🍅 Harvest: May 4 – Jun 22

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 Brantley County

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

Soil pH

Your soil pH (4.8–6.1) is more acidic than Borage prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Brantley County warms quickly in spring but drains fast. Borage will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Borage prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Borage.

How to Plant Borage

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Borage

6
successive plantings in your 283-day season

Sow every 5.7 weeks. Last sowing by Sep 30 to harvest before frost.

For a dedicated fall crop, sow by Oct 04.

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

Monthly Watering Guide for Borage

Borage needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Borage Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 2.2" 5.1" 0" ✅ Rainfall sufficient
Mar 2.2" 6.2" 0" ✅ Rainfall sufficient
Apr 2.2" 4.2" 0" ✅ Rainfall sufficient
May 2.2" 5.1" 0" ✅ Rainfall sufficient
Jun 2.2" 5.7" 0" ✅ Rainfall sufficient
Jul 2.2" 5.4" 0" ✅ Rainfall sufficient
Aug 2.2" 5.9" 0" ✅ Rainfall sufficient
Sep 2.2" 4.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 3.8" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

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

Borage 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.

Borage needs ~962 GDD — county provides 4,970 GDD Excellent fit

Borage Planting Timeline — Brantley County, GA

Borage Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 – Feb 5
Transplant Outdoors February 12 Feb 12 – Feb 26
Direct Sow January 29 Jan 29 – Feb 19
Harvest April 9 Apr 9 – May 28
Fall Sowing October 4 Oct 4 – Oct 18

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

283 days in Brantley County

Growing Tips for Borage in Brantley County

Direct sow Borage outdoors after February 19 in Brantley County when soil has warmed and frost danger has passed.

Sandy soil in Brantley County dries quickly — mulch Borage with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With 58" of annual rainfall in Brantley County, ensure good drainage for Borage — excess moisture can promote root rot and fungal diseases.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Borage in Brantley County, GA?

Brantley County is in Zone 9a with an average last frost of February 19. Plan your Borage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Brantley County, GA?

Brantley County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is February 19 and first fall frost is November 29.

🌱

Your Brantley County Garden Planner — Free

A 24-page printable planner built for Brantley County (Zone 9a). 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 Brantley County, GA. 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.