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When to Plant Collard Greens in Houston County, GA

Houston County, Georgia Zone 8b May

Top priorities for Houston County, Georgia gardeners in May

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

Avg. last frost March 9
Avg. first frost November 15
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start harvesting collard greens

    If you can't use it all right away, check the food-preservation section of your planner.

Before June arrives, get these ready
  • First harvests: collard greens

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Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.

Houston County, Georgia is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 15, giving you a growing season of approximately 251 days.

At an elevation of 484 feet, Houston County receives approximately 53.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Collard Greens during the growing season. Clay soil retains moisture well for Collard Greens, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Collard Greens root diseases.

Houston County, GA (Zone 8b) Long season
251 days
Last Spring Frost March 9
251 growing days
First Fall Frost November 15

Houston County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.3

Drainage

Well Drained

Monthly Watering Guide for Collard Greens

Collard Greens needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Collard Greens Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 4.3" 5.5" 0" ✅ Rainfall sufficient
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 5.9" 0" ✅ Rainfall sufficient
Aug 4.3" 5.4" 0" ✅ Rainfall sufficient
Sep 4.3" 4" 0.3" 💧 Light watering
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.1" 0" ❄️ Dormant

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

Collard Greens Planting Timeline — Houston County, GA

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors February 2 Feb 2 – Feb 16
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow February 23 Feb 23 – Mar 16
Harvest May 4 May 4 – Jul 6
Fall Sowing September 6 Sep 6 – Sep 20

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
May Harvest
June Harvest
July Harvest
August
September Fall Sowing
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

251 days in Houston County

Growing Tips for Houston County

Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Collard Greens in Houston County, GA?

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

What planting zone is Houston County, GA?

Houston County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 15.

🌱

Your Houston County Garden Planner — Free

A 24-page printable planner built for Houston County (Zone 8b). 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 Houston 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.