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When to Plant Leeks in Prairie County, AR

Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.

Prairie County, Arkansas is in USDA Zone 7b. The average last spring frost is March 19 and the first fall frost is November 8, giving you a growing season of approximately 234 days.

At an elevation of 1,026 feet, Prairie County receives approximately 51.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Leeks during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Prairie County, AR (Zone 7b) Long season
234 days
Last Spring Frost March 19
234 growing days
First Fall Frost November 8

Prairie County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (66 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: Jun 11 – Aug 27
Recommended (50%) ✓ Fits season (66 days to spare)
Start indoors: Feb 12 Transplant: Mar 19 🍅 Harvest: Jun 18 – Sep 3
Safe Start (90%) ✓ Fits season (64 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: Jul 8 – Sep 23

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
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 172 gal / 100 sq ft
Leeks needs ~2,010 GDD — county provides 3,919 GDD Excellent fit

Leeks Planting Timeline โ€” Prairie County, AR

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 โ€“ Feb 26
Transplant Outdoors March 19 Mar 19 โ€“ Apr 2
Direct Sow March 5 Mar 5 โ€“ Mar 26
Fall Sowing August 30 Aug 30 โ€“ Sep 13
Harvest June 18 Jun 18 โ€“ Sep 3

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

90โ€“150 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

234 days

Growing Tips for Prairie County

Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Level Up Your Garden

Frequently Asked Questions

When should I plant Leeks in Prairie County, AR?

Prairie County is in Zone 7b with an average last frost of March 19. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Prairie County, AR?

Prairie County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 19 and first fall frost is November 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Prairie County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Prairie County, AR. Local conditions may vary. Last updated: April 2026.