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When to Plant Collard Greens in Live Oak County, TX

Live Oak County, Texas Zone 9b May

Your May gardening checklist

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

Avg. last frost February 13
Avg. first frost December 7
Soil temp (4") 68°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Bring in the collard greens

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

To set up a strong June, finish these tasks
  • 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.

Live Oak County, Texas is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 7, giving you a growing season of approximately 297 days.

At an elevation of 3,092 feet, Live Oak County receives approximately 63.3 inches of rainfall annually with predominantly loam soil. Summer highs average 104°F, so Collard Greens may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Collard Greens root diseases.

Live Oak County, TX (Zone 9b) Year-round
297 days
Last Spring Frost February 13
297 growing days
First Fall Frost December 7

Live Oak County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (196 days to spare)
Start indoors: Dec 23 Transplant: Jan 20 🍅 Harvest: Mar 17 – May 19
Recommended (50%) ✓ Fits season (178 days to spare)
Start indoors: Jan 16 Transplant: Feb 13 🍅 Harvest: Apr 10 – Jun 12
Safe Start (90%) ✓ Fits season (171 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 1 – Jul 3

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 Live Oak County

How your county's soil matches Collard Greens's growing requirements.

Soil pH

Your soil pH (6.8–7.8) is more alkaline than Collard Greens prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Live Oak County is excellent for Collard Greens — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Collard Greens.

How to Plant Collard Greens

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 Collard Greens

6
successive plantings in your 297-day season

Sow every 6.3 weeks. Last sowing by Sep 23 to harvest before frost.

For a dedicated fall crop, sow by Oct 12.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Collard Greens

Collard Greens 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 Collard Greens Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 3.5" 2.3" 1.2" 💧 Light watering
Mar 3.5" 4.4" 0" ✅ Rainfall sufficient
Apr 3.5" 7.4" 0" ✅ Rainfall sufficient
May 3.5" 7.9" 0" ✅ Rainfall sufficient
Jun 3.5" 9.9" 0" ✅ Rainfall sufficient
Jul 3.5" 8.9" 0" ✅ Rainfall sufficient
Aug 3.5" 7.4" 0" ✅ Rainfall sufficient
Sep 3.5" 6.2" 0" ✅ Rainfall sufficient
Oct 3.5" 3.6" 0" ✅ Rainfall sufficient
Nov 3.5" 1.8" 1.7" 💧 Light watering
Dec 3.5" 1.7" 1.8" 🚿 Regular watering

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

Collard Greens 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.

Collard Greens needs ~1,820 GDD — county provides 8,344 GDD Excellent fit

Collard Greens Planting Timeline — Live Oak County, TX

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 23 Jan 23 – Feb 13
Harvest April 10 Apr 10 – Jun 12
Fall Sowing October 12 Oct 12 – Oct 26

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

297 days in Live Oak County

Growing Tips for Collard Greens in Live Oak County

Direct sow Collard Greens outdoors after February 13 in Live Oak County when soil has warmed and frost danger has passed.

With summer highs reaching 104°F in Live Oak County, provide afternoon shade for Collard Greens and water deeply in the morning.

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

General growing tips

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 Live Oak County, TX?

Live Oak County is in Zone 9b with an average last frost of February 13. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Live Oak County, TX?

Live Oak County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 7.

🌱

Your Live Oak County Garden Planner — Free

A 24-page printable planner built for Live Oak County (Zone 9b). 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 Live Oak County, TX. 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.