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When to Plant Broccoli Rabe in Grady County, GA

Grady County, Georgia Zone 9a May

May in Grady County, Georgia — your action list

Welcome to May in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 5
Avg. first frost November 21
Soil temp (4") 73°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Harvest broccoli rabe as they ripen

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

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Broccoli rabe (rapini) is a brassica grown for its slightly bitter, nutty-flavored florets, leaves, and stems. It is a staple in Italian cooking.

Grady County, Georgia is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 21, giving you a growing season of approximately 261 days.

At an elevation of 323 feet, Grady County receives approximately 48.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Broccoli Rabe during the growing season. Clay soil retains moisture well for Broccoli Rabe, but amend with compost to improve drainage and prevent root rot.

Grady County, GA (Zone 9a) Long season
261 days
Last Spring Frost March 5
261 growing days
First Fall Frost November 21
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Grady County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (189 days to spare)
Start indoors: Jan 24 Transplant: Feb 21 🍅 Harvest: Apr 4 – May 9
Recommended (50%) ✓ Fits season (184 days to spare)
Start indoors: Feb 5 Transplant: Mar 5 🍅 Harvest: Apr 16 – May 21
Safe Start (90%) ✓ Fits season (187 days to spare)
Start indoors: Feb 26 Transplant: Mar 26 🍅 Harvest: May 7 – Jun 11

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 Grady County

How your county's soil matches Broccoli Rabe's growing requirements.

Soil pH

Your soil pH (5.4–6.5) is more acidic than Broccoli Rabe prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Broccoli Rabe.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Broccoli Rabe.

How to Plant Broccoli Rabe

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Broccoli Rabe

7
successive plantings in your 261-day season

Sow every 4.6 weeks. Last sowing by Sep 22 to harvest before frost.

For a dedicated fall crop, sow by Sep 26.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Broccoli Rabe

Broccoli Rabe needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Broccoli Rabe Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 3.5" 4.9" 0" ✅ Rainfall sufficient
Apr 3.5" 4" 0" ✅ Rainfall sufficient
May 3.5" 3.7" 0" ✅ Rainfall sufficient
Jun 3.5" 4" 0" ✅ Rainfall sufficient
Jul 3.5" 5.3" 0" ✅ Rainfall sufficient
Aug 3.5" 4.5" 0" ✅ Rainfall sufficient
Sep 3.5" 3.6" 0" ✅ Rainfall sufficient
Oct 3.5" 2.8" 0.7" 💧 Light watering
Nov 3.5" 3.7" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

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

Broccoli Rabe 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.

Broccoli Rabe needs ~912 GDD — county provides 4,763 GDD Excellent fit

Broccoli Rabe Planting Timeline — Grady County, GA

Broccoli Rabe Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors March 5 Mar 5 – Mar 19
Direct Sow February 12 Feb 12 – Mar 5
Harvest April 16 Apr 16 – May 21
Fall Sowing September 26 Sep 26 – Oct 10

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

261 days in Grady County

Growing Tips for Broccoli Rabe in Grady County

Direct sow Broccoli Rabe outdoors after March 05 in Grady County when soil has warmed and frost danger has passed.

With Grady County's clay soil (33% clay), work in 3-4 inches of compost before planting Broccoli Rabe. Avoid tilling when soil is wet to prevent compaction.

Your generous 261.0-day season in Grady County allows multiple plantings of Broccoli Rabe. Sow every 20.0 days for continuous harvest.

Common pests for Broccoli Rabe in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Harvest when small yellow flower buds first appear but before they open. Cut the main shoot first to encourage side shoots.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Broccoli Rabe in Grady County, GA?

Grady County is in Zone 9a with an average last frost of March 5. Plan your Broccoli Rabe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grady County, GA?

Grady County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 21.

🌱

Your Grady County Garden Planner — Free

A 24-page printable planner built for Grady 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 Grady 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.