Blog

When to Plant Cilantro in Coffee County, GA

Coffee County, Georgia Zone 9a May

May in Coffee County, Georgia — your action list

Each item below is timed to Coffee County, Georgia's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 8
Avg. first frost November 22
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Pick cilantro

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

June will be here before you know it — start on
  • First harvests: cilantro

Instant PDF download. No spam, unsubscribe any time.

Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.

Coffee County, Georgia is in USDA Zone 9a. The average last spring frost is March 8 and the first fall frost is November 22, giving you a growing season of approximately 259 days.

At an elevation of 110 feet, Coffee County receives approximately 59.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Cilantro may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Cilantro, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cilantro root diseases.

Coffee County, GA (Zone 9a) Long season
259 days
Last Spring Frost March 8
259 growing days
First Fall Frost November 22

Coffee County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (162 days to spare)
Start indoors: Jan 31 Transplant: Feb 21 🍅 Harvest: Apr 4 – Jun 6
Recommended (50%) ✓ Fits season (161 days to spare)
Start indoors: Feb 8 Transplant: Mar 1 🍅 Harvest: Apr 12 – Jun 14
Safe Start (90%) ✓ Fits season (165 days to spare)
Start indoors: Feb 26 Transplant: Mar 19 🍅 Harvest: Apr 30 – Jul 2

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 Coffee County

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

Soil pH

Your soil pH (5.6–6.3) is more acidic than Cilantro prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cilantro.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Cilantro.

How to Plant Cilantro

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 Cilantro

7
successive plantings in your 259-day season

Sow every 4.6 weeks. Last sowing by Sep 23 to harvest before frost.

For a dedicated fall crop, sow by Sep 27.

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

Monthly Watering Guide for Cilantro

Cilantro 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 Cilantro Needs Rainfall You Supplement Action
Jan 5.1" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 2.2" 5.9" 0" ✅ Rainfall sufficient
Apr 2.2" 4.8" 0" ✅ Rainfall sufficient
May 2.2" 4.9" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 5.9" 0" ✅ Rainfall sufficient
Aug 2.2" 5.8" 0" ✅ Rainfall sufficient
Sep 2.2" 4.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.6" 0" ✅ Rainfall sufficient
Nov 2.2" 4.6" 0" ✅ Rainfall sufficient
Dec 4.7" 0" ❄️ Dormant

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

Cilantro 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.

Cilantro needs ~1,062 GDD — county provides 5,503 GDD Excellent fit

Cilantro Planting Timeline — Coffee County, GA

Cilantro Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 1 Mar 1 – Mar 15
Direct Sow February 15 Feb 15 – Mar 8
Harvest April 12 Apr 12 – Jun 14
Fall Sowing September 27 Sep 27 – Oct 11

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

259 days in Coffee County

Growing Tips for Cilantro in Coffee County

Direct sow Cilantro outdoors after March 08 in Coffee County when soil has warmed and frost danger has passed.

With Coffee County's clay soil (32% clay), work in 3-4 inches of compost before planting Cilantro. Avoid tilling when soil is wet to prevent compaction.

Summer highs in Coffee County reach 95°F — grow Cilantro as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 259.0-day season in Coffee County allows multiple plantings of Cilantro. Sow every 20.0 days for continuous harvest.

Common pests for Cilantro in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cilantro in Coffee County, GA?

Coffee County is in Zone 9a with an average last frost of March 8. Plan your Cilantro planting based on this frost date — see the calendar above for exact timing.

What planting zone is Coffee County, GA?

Coffee County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 8 and first fall frost is November 22.

🌱

Your Coffee County Garden Planner — Free

A 24-page printable planner built for Coffee 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Coffee 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.