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When to Plant Cauliflower in Latimer County, OK

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.

Latimer County, Oklahoma is in USDA Zone 7a. The average last spring frost is April 5 and the first fall frost is October 31, giving you a growing season of approximately 209 days.

At an elevation of 773 feet, Latimer County receives approximately 33.6 inches of rainfall annually with predominantly loam soil. Summer highs average 89ยฐF, providing good warmth for Cauliflower during the growing season.

Latimer County, OK (Zone 7a) Long season
209 days
Last Spring Frost April 5
209 growing days
First Fall Frost October 31

Latimer County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (95 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 20 – Jul 22
Recommended (50%) ✓ Fits season (90 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: May 31 – Aug 2
Safe Start (90%) ✓ Fits season (94 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: Jun 17 – Aug 19

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
0.7″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,841 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Cauliflower needs ~1,298 GDD — county provides 3,500 GDD Excellent fit

Cauliflower Planting Timeline โ€” Latimer County, OK

Cauliflower Planting Calendar

Activity When Date Range
Start Indoors March 1 Mar 1 โ€“ Mar 15
Transplant Outdoors April 5 Apr 5 โ€“ Apr 19
Direct Sow March 22 Mar 22 โ€“ Apr 12
Fall Sowing August 22 Aug 22 โ€“ Sep 5
Harvest May 31 May 31 โ€“ Aug 2

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August Fall Sowing Harvest
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 7a

Growing Season

209 days

Growing Tips for Latimer 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 Latimer County, OK?

Latimer County is in Zone 7a with an average last frost of April 5. Plan your Cauliflower planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Latimer County, OK?

Latimer County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is April 5 and first fall frost is October 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Latimer County gardeners in Zone 7a 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 Latimer County, OK. Local conditions may vary. Last updated: April 2026.