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When to Plant Cabbage in Denton County, TX

Denton County, Texas Zone 8b May

May to-do list for Denton County, Texas

We've pulled the most time-sensitive tasks for Denton County, Texas this May and put them front and centre. Tackle them in order.

Avg. last frost March 10
Avg. first frost November 20
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. It's harvest week for cabbage

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong June, finish these tasks
  • First harvests: cabbage

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Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.

Denton County, Texas is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 20, giving you a growing season of approximately 255 days.

At an elevation of 1,848 feet, Denton County receives approximately 64.5 inches of rainfall annually with predominantly clay soil. Summer highs average 90°F, providing good warmth for Cabbage during the growing season. Clay soil retains moisture well for Cabbage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Denton County, TX (Zone 8b) Long season
255 days
Last Spring Frost March 10
255 growing days
First Fall Frost November 20
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Denton County Soil Profile

Soil Type

Clay

Soil pH

6.7-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Start indoors: Jan 26 Transplant: Mar 2 🍅 Harvest: May 4 – Jun 29
Recommended (50%) ✓ Fits season (136 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: May 12 – Jul 7
Safe Start (90%) ✓ Fits season (121 days to spare)
Start indoors: Mar 7 Transplant: Apr 11 🍅 Harvest: Jun 13 – Aug 8

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 Denton County

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

Soil pH

Your soil pH (6.7–8.1) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

Heavy clay soil (40% clay) in Denton County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Drainage is adequate for Cabbage.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Cabbage.

How to Plant Cabbage

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Cabbage

5
successive plantings in your 255-day season

Sow every 6.9 weeks. Last sowing by Aug 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 11.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.1″/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 Cabbage

Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Cabbage Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 3.9" 4.2" 0" ✅ Rainfall sufficient
Apr 3.9" 7.5" 0" ✅ Rainfall sufficient
May 3.9" 9.6" 0" ✅ Rainfall sufficient
Jun 3.9" 10.2" 0" ✅ Rainfall sufficient
Jul 3.9" 7.6" 0" ✅ Rainfall sufficient
Aug 3.9" 8" 0" ✅ Rainfall sufficient
Sep 3.9" 6.4" 0" ✅ Rainfall sufficient
Oct 3.9" 3.5" 0.4" 💧 Light watering
Nov 3.9" 2.4" 1.5" 💧 Light watering
Dec 1.6" 0" ❄️ Dormant

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

Cabbage 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.

Cabbage needs ~1,400 GDD — county provides 4,462 GDD Excellent fit

Cabbage Planting Timeline — Denton County, TX

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors March 10 Mar 10 – Mar 24
Direct Sow February 24 Feb 24 – Mar 17
Harvest May 12 May 12 – Jul 7
Fall Sowing September 11 Sep 11 – Sep 25

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

255 days in Denton County

Growing Tips for Cabbage in Denton County

Direct sow Cabbage outdoors after March 10 in Denton County when soil has warmed and frost danger has passed.

With Denton County's clay soil (40% clay), work in 3-4 inches of compost before planting Cabbage. Avoid tilling when soil is wet to prevent compaction.

Common pests for Cabbage 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 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.

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 Cabbage in Denton County, TX?

Denton County is in Zone 8b with an average last frost of March 10. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Denton County, TX?

Denton County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 20.

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Your Denton County Garden Planner — Free

A 24-page printable planner built for Denton 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 Denton 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.