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When to Plant Cauliflower in Woodruff County, AR

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.

Woodruff County, Arkansas is in USDA Zone 7b. The average last spring frost is March 20 and the first fall frost is November 6, giving you a growing season of approximately 231 days.

At an elevation of 1,343 feet, Woodruff County receives approximately 49.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Cauliflower during the growing season.

Woodruff County, AR (Zone 7b) Long season
231 days
Last Spring Frost March 20
231 growing days
First Fall Frost November 6

Woodruff County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: May 7 – Jul 9
Recommended (50%) ✓ Fits season (112 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: May 15 – Jul 17
Safe Start (90%) ✓ Fits season (113 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: Jun 3 – Aug 5

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
0.9″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,234 gal / 100 sq ft
Cauliflower needs ~1,298 GDD — county provides 3,869 GDD Excellent fit

Cauliflower Planting Timeline โ€” Woodruff County, AR

Cauliflower 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
Fall Sowing August 28 Aug 28 โ€“ Sep 11
Harvest May 15 May 15 โ€“ Jul 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 Fall Sowing
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

231 days

Growing Tips for Woodruff 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 Woodruff County, AR?

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

What planting zone is Woodruff County, AR?

Woodruff County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 20 and first fall frost is November 6.

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Plan Your Garden with Confidence

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