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When to plant Leeks in Ashdown, AR

The best window to plant Leeks in Ashdown, is March 6–March 27, when soil warms to 50°F. Last frost typically hits March 20; first frost November 12. A second sowing from September 3 to September 17 extends the harvest into fall.

When to Plant Leeks in Ashdown, AR

Leeks
Little River County, Arkansas Zone 8b June

June to-do list for Little River County, Arkansas

Here's what deserves your attention in Little River County, Arkansas this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Bring in the leeks

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

July will be here before you know it — start on
  • First harvests: leeks

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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.

Ashdown, Arkansas is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 1,477 feet, Little River County receives approximately 54 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Leeks during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Ashdown, AR (Zone 8b) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12

Ashdown Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Leeks Planting Risk Windows

Early Start (70% safe) ✓ Fits season (68 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Jun 10 – Aug 26
Recommended (50%) ✓ Fits season (69 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: Jun 19 – Sep 4
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 9 – Sep 24

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.

Soil Compatibility in Ashdown

How your county's soil matches Leeks's growing requirements.

Soil pH

Your soil pH (5.7–6.6) overlaps with Leeks's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Little River County is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Leeks.

How to Plant Leeks

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Leeks Water Budget

Plant needs
0.8″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Leeks

Leeks needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Leeks Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 3.5" 5.5" 0" ✅ Rainfall sufficient
Apr 3.5" 4" 0" ✅ Rainfall sufficient
May 3.5" 4.5" 0" ✅ Rainfall sufficient
Jun 3.5" 4.9" 0" ✅ Rainfall sufficient
Jul 3.5" 5.6" 0" ✅ Rainfall sufficient
Aug 3.5" 5.4" 0" ✅ Rainfall sufficient
Sep 3.5" 3.5" 0" ✅ Rainfall sufficient
Oct 3.5" 3.1" 0.4" 💧 Light watering
Nov 3.5" 4.3" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Little River County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Leeks Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Leeks needs ~2,010 GDD — county provides 3,969 GDD Excellent fit

Leeks Planting Timeline — Ashdown, AR

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest June 19 Jun 19 – Sep 4
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Transplant Outdoors Direct Sow
April Transplant Outdoors
May
June Harvest
July Harvest
August Harvest
September Fall Sowing Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

90–150 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Little River County

Growing Tips for Leeks in Ashdown

Direct sow Leeks outdoors after March 20 in Little River County when soil has warmed and frost danger has passed.

Common pests for Leeks in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

When should I plant Leeks in Ashdown, AR?

In Ashdown, AR, plant Leeks after the last frost (around March 20) and before the first frost (around November 12). Best results when soil holds above 50°F.

What growing zone is Ashdown, AR for Leeks?

Ashdown sits in USDA Zone 8b. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.

Can Leeks grow in Ashdown's climate?

Yes — Leeks grows well in Ashdown's temperate climate. Ashdown averages a 237-day frost-free season, with last frost around March 20 and first frost around November 12.

🌱

Your Little River County Garden Planner — Free

A 22-page printable planner built for Little River County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Little River County, AR. Local conditions may vary. Last updated: June 2026.