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When to Plant Cabbage in Knox County, TX

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.

Knox County, Texas is in USDA Zone 7b. The average last spring frost is March 24 and the first fall frost is November 12, giving you a growing season of approximately 233 days.

At an elevation of 1,847 feet, Knox County receives approximately 51.2 inches of rainfall annually with predominantly loam soil. Summer highs average 93Β°F, providing good warmth for Cabbage during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Knox County, TX (Zone 7b) Long season
233 days
Last Spring Frost March 24
233 growing days
First Fall Frost November 12

Knox County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.2

Drainage

Well Drained

How Much Cabbage to Grow

2-4 lbs
Average yield per plant
3
Plants per person
6 sq ft
Space per person

For a family of 4, plant approximately 12 cabbage plants in about 24 sq ft. In Knox County's 233-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Monthly Watering Guide for Cabbage

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

Month Cabbage Needs Rainfall You Supplement Action
Jan β€” 1.3" 0" ❄️ Dormant
Feb β€” 2.1" 0" ❄️ Dormant
Mar 4.3" 3.2" 1.1" πŸ’§ Light watering
Apr 4.3" 6.4" 0" βœ… Rainfall sufficient
May 4.3" 6.7" 0" βœ… Rainfall sufficient
Jun 4.3" 7.3" 0" βœ… Rainfall sufficient
Jul 4.3" 6.5" 0" βœ… Rainfall sufficient
Aug 4.3" 5.9" 0" βœ… Rainfall sufficient
Sep 4.3" 5.4" 0" βœ… Rainfall sufficient
Oct 4.3" 3.3" 1" πŸ’§ Light watering
Nov 4.3" 1.8" 2.5" 🚿 Regular watering
Dec β€” 1.3" 0" ❄️ Dormant

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

Cabbage Planting Timeline β€” Knox County, TX

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 17 Feb 17 – Mar 3
Transplant Outdoors March 24 Mar 24 – Apr 7
Direct Sow March 10 Mar 10 – Mar 31
Harvest May 26 May 26 – Jul 21
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

60–100 days

πŸ§ͺ Soil pH

Needs 6–7.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

233 days in Knox County

Growing Tips for Knox County

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 Knox County, TX?

Knox County is in Zone 7b with an average last frost of March 24. Plan your Cabbage planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Knox County, TX?

Knox County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 24 and first fall frost is November 12.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Knox County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Knox County, TX. Local conditions may vary. Last updated: April 2026.