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When to plant Leeks in Clanton, AL

Clanton gardeners should plant Leeks between February 28 and March 21 in spring. With Clanton's Zone 8b climate (last frost March 14), Leeks needs 90–150 days to mature — plant by June 17 for a full harvest. A second sowing from September 5 to September 19 extends the harvest into fall.

When to Plant Leeks in Clanton, AL

Leeks
Chilton County, Alabama Zone 8b June

June in Chilton County, Alabama — your action list

Each item below is timed to Chilton County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 14
Avg. first frost November 14
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. It's harvest week for leeks

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Looking ahead to July
  • 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.

Clanton, Alabama is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 14, giving you a growing season of approximately 245 days.

At an elevation of 310 feet, Chilton County receives approximately 50.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, providing good warmth for Leeks during the growing season. Clay soil retains moisture well for Leeks, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Clanton, AL (Zone 8b) Long season
245 days
Last Spring Frost March 14
245 growing days
First Fall Frost November 14

Clanton Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Leeks Planting Risk Windows

Early Start (70% safe) ✓ Fits season (76 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: Jun 6 – Aug 22
Recommended (50%) ✓ Fits season (77 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: Jun 13 – Aug 29
Safe Start (90%) ✓ Fits season (73 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: Jul 3 – Sep 18

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 Clanton

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

Soil pH

Your soil pH (5.5–6.6) overlaps with Leeks's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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
0.9″/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" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 3.5" 5.4" 0" ✅ Rainfall sufficient
Apr 3.5" 4.1" 0" ✅ Rainfall sufficient
May 3.5" 3.8" 0" ✅ Rainfall sufficient
Jun 3.5" 3.9" 0" ✅ Rainfall sufficient
Jul 3.5" 5.1" 0" ✅ Rainfall sufficient
Aug 3.5" 5.2" 0" ✅ Rainfall sufficient
Sep 3.5" 4.1" 0" ✅ Rainfall sufficient
Oct 3.5" 2.8" 0.7" 💧 Light watering
Nov 3.5" 3.4" 0.1" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Chilton 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 4,103 GDD Excellent fit

Leeks Planting Timeline — Clanton, AL

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors March 14 Mar 14 – Mar 28
Direct Sow February 28 Feb 28 – Mar 21
Harvest June 13 Jun 13 – Aug 29
Fall Sowing September 5 Sep 5 – Sep 19

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

Month-by-Month Timeline

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

245 days in Chilton County

Growing Tips for Leeks in Clanton

Direct sow Leeks outdoors after March 14 in Chilton County when soil has warmed and frost danger has passed.

With Chilton County's clay soil (34% clay), work in 3-4 inches of compost before planting Leeks. Avoid tilling when soil is wet to prevent compaction.

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 Clanton, AL?

In Clanton, AL, plant Leeks after the last frost (around March 14) and before the first frost (around November 14). Best results when soil holds above 50°F.

What growing zone is Clanton, AL for Leeks?

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

Can Leeks grow in Clanton's climate?

Yes — Leeks grows well in Clanton's temperate climate. Clanton averages a 245-day frost-free season, with last frost around March 14 and first frost around November 14.

🌱

Your Chilton County Garden Planner — Free

A 22-page printable planner built for Chilton 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 Chilton County, AL. Local conditions may vary. Last updated: June 2026.