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When to Plant Cauliflower in Conway 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.

Conway County, Arkansas is in USDA Zone 7a. The average last spring frost is April 1 and the first fall frost is October 30, giving you a growing season of approximately 212 days.

At an elevation of 1,174 feet, Conway County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Cauliflower during the growing season.

Conway County, AR (Zone 7a) Long season
212 days
Last Spring Frost April 1
212 growing days
First Fall Frost October 30

Conway County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: May 19 – Jul 21
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: May 27 – Jul 29
Safe Start (90%) ✓ Fits season (95 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 11 – Aug 13

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
1.0″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 972 gal / 100 sq ft
Cauliflower needs ~1,414 GDD — county provides 3,869 GDD Excellent fit

Cauliflower Planting Timeline โ€” Conway County, AR

Cauliflower Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 โ€“ Mar 11
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 18 Mar 18 โ€“ Apr 8
Fall Sowing August 21 Aug 21 โ€“ Sep 4
Harvest May 27 May 27 โ€“ Jul 29

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
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 7a

Growing Season

212 days

Growing Tips for Conway 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 Conway County, AR?

Conway County is in Zone 7a with an average last frost of April 1. Plan your Cauliflower planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Conway County, AR?

Conway County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is April 1 and first fall frost is October 30.

๐ŸŒฑ

Plan Your Garden with Confidence

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