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When to Plant Cauliflower in Wheeler County, TX

Wheeler County, Texas Zone 7a May

Your May gardening checklist

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 9
Avg. first frost October 26
Soil temp (4") 68°F
Watering High
Pest pressure Moderate
Daylight 13.9 hrs
  1. Indoor seed-starting week for cauliflower

    You're about 24 weeks out from your last frost — the perfect window to get these germinating indoors.

A few tasks this May that'll pay off in June
  • First harvests: cauliflower

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Cauliflower is a cool-season brassica that produces dense white, purple, or green heads called curds. It is more finicky than broccoli but rewards with a mild, nutty flavor.

Wheeler County, Texas is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 26, giving you a growing season of approximately 200 days.

At an elevation of 1,222 feet, Wheeler County receives approximately 54.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Cauliflower may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cauliflower will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cauliflower root diseases.

Wheeler County, TX (Zone 7a) Long season
200 days
Last Spring Frost April 9
200 growing days
First Fall Frost October 26
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Wheeler County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (85 days to spare)
Start indoors: Feb 26 Transplant: Apr 2 🍅 Harvest: May 28 – Jul 30
Recommended (50%) ✓ Fits season (81 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 4 – Aug 6
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Mar 21 Transplant: Apr 25 🍅 Harvest: Jun 20 – Aug 22

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 Wheeler County

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

Soil pH

Your soil pH (7.7–8.4) is more alkaline than Cauliflower prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Cauliflower.

How to Plant Cauliflower

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 Cauliflower

4
successive plantings in your 200-day season

Sow every 6.3 weeks. Last sowing by Jul 18 to harvest before frost.

For a dedicated fall crop, sow by Aug 17.

Plant Water Budget

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

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cauliflower

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

Month Cauliflower Needs Rainfall You Supplement Action
Jan 4" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 4.3" 1.7" 2.6" 🚿 Regular watering
May 4.3" 1.3" 3" 🚿 Regular watering
Jun 4.3" 1.8" 2.5" 🚿 Regular watering
Jul 4.3" 10.1" 0" ✅ Rainfall sufficient
Aug 4.3" 9.9" 0" ✅ Rainfall sufficient
Sep 4.3" 7.3" 0" ✅ Rainfall sufficient
Oct 4.3" 5.1" 0" ✅ Rainfall sufficient
Nov 3.5" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

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

Cauliflower 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.

Cauliflower needs ~1,705 GDD — county provides 4,400 GDD Excellent fit

Cauliflower Planting Timeline — Wheeler County, TX

Cauliflower Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 – Mar 19
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow March 26 Mar 26 – Apr 16
Harvest June 4 Jun 4 – Aug 6
Fall Sowing August 17 Aug 17 – Aug 31

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

55–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

200 days in Wheeler County

Growing Tips for Cauliflower in Wheeler County

Direct sow Cauliflower outdoors after April 09 in Wheeler County when soil has warmed and frost danger has passed.

Sandy soil in Wheeler County dries quickly — mulch Cauliflower with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Wheeler County reach 96°F — grow Cauliflower as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Cauliflower 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 6 weeks before transplanting. Blanch white varieties by tying outer leaves over the head. Provide consistent moisture and avoid temperature extremes.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cauliflower in Wheeler County, TX?

Wheeler County is in Zone 7a with an average last frost of April 9. Plan your Cauliflower planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wheeler County, TX?

Wheeler County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 26.

🌱

Your Wheeler County Garden Planner — Free

A 24-page printable planner built for Wheeler County (Zone 7a). 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 Wheeler 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.