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When to Plant Cabbage in Upton 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.

Upton County, Texas is in USDA Zone 7b. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 1,734 feet, Upton County receives approximately 50.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Cabbage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Upton County, TX (Zone 7b) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12

Upton County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: May 12 – Jul 7
Recommended (50%) ✓ Fits season (118 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: May 22 – Jul 17
Safe Start (90%) ✓ Fits season (111 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: Jun 15 – Aug 10

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 Upton County

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

Soil pH

Your soil pH (7.8โ€“8.3) is more alkaline than Cabbage prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Upton County warms quickly in spring but drains fast. Cabbage will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting 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

4
successive plantings in your 237-day season

Sow every 6.9 weeks. Last sowing by Aug 04 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

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

Water stress score is 8/10 โ€” 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 โ€” 3.9" 0" โ„๏ธ Dormant
Feb โ€” 2.5" 0" โ„๏ธ Dormant
Mar 3.9" 3.2" 0.7" ๐Ÿ’ง Light watering
Apr 3.9" 2" 1.9" ๐Ÿ’ง Light watering
May 3.9" 1.3" 2.6" ๐Ÿšฟ Regular watering
Jun 3.9" 1.7" 2.2" ๐Ÿšฟ Regular watering
Jul 3.9" 8.4" 0" โœ… Rainfall sufficient
Aug 3.9" 9.8" 0" โœ… Rainfall sufficient
Sep 3.9" 7.7" 0" โœ… Rainfall sufficient
Oct 3.9" 4.4" 0" โœ… Rainfall sufficient
Nov 3.9" 2.7" 1.2" ๐Ÿ’ง Light watering
Dec โ€” 3.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Upton County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,760 GDD — county provides 5,214 GDD Excellent fit

Cabbage Planting Timeline โ€” Upton County, TX

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 โ€“ Feb 27
Transplant Outdoors March 20 Mar 20 โ€“ Apr 3
Direct Sow March 6 Mar 6 โ€“ Mar 27
Harvest May 22 May 22 โ€“ Jul 17
Fall Sowing September 3 Sep 3 โ€“ Sep 17

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

237 days in Upton County

Growing Tips for Cabbage in Upton County

Direct sow Cabbage outdoors after March 20 in Upton County when soil has warmed and frost danger has passed.

Sandy soil in Upton County dries quickly โ€” mulch Cabbage with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Upton County reach 96ยฐF โ€” grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.

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 Upton County, TX?

Upton County is in Zone 7b with an average last frost of March 20. Plan your Cabbage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Upton County, TX?

Upton County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 20 and first fall frost is November 12.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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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 Upton County, TX. Local conditions may vary. Last updated: April 2026.