Blog

When to Plant Cauliflower in Fannin County, TX

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.

Fannin County, Texas is in USDA Zone 7b. The average last spring frost is March 16 and the first fall frost is November 15, giving you a growing season of approximately 244 days.

At an elevation of 282 feet, Fannin County receives approximately 63.8 inches of rainfall annually with predominantly loam soil. Summer highs average 88ยฐF, providing good warmth for Cauliflower during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cauliflower root diseases.

Fannin County, TX (Zone 7b) Long season
244 days
Last Spring Frost March 16
244 growing days
First Fall Frost November 15

Fannin County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (128 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: May 2 – Jul 4
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🍅 Harvest: May 11 – Jul 13
Safe Start (90%) ✓ Fits season (117 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 4 – Aug 6

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.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 873 gal / 100 sq ft
Cauliflower needs ~1,240 GDD — county provides 3,904 GDD Excellent fit

Cauliflower Planting Timeline โ€” Fannin County, TX

Cauliflower Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 โ€“ Feb 23
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Direct Sow March 2 Mar 2 โ€“ Mar 23
Fall Sowing September 6 Sep 6 โ€“ Sep 20
Harvest May 11 May 11 โ€“ Jul 13

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 โ€”
May Harvest
June Harvest
July Harvest
August โ€”
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

55โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

244 days

Growing Tips for Fannin County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Cauliflower in Fannin County, TX?

Fannin County is in Zone 7b with an average last frost of March 16. Plan your Cauliflower planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fannin County, TX?

Fannin County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 16 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fannin 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 Fannin County, TX. Local conditions may vary. Last updated: April 2026.