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When to Plant Leeks in Lowndes County, AL

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.

Lowndes County, Alabama is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 392 feet, Lowndes County receives approximately 57.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95ยฐF, so Leeks may need afternoon shade and extra watering during peak heat. 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.

Lowndes County, AL (Zone 8a) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13

Lowndes County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: Jun 6 – Aug 22
Recommended (50%) ✓ Fits season (75 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: Jun 14 – Aug 30
Safe Start (90%) ✓ Fits season (66 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jul 7 – Sep 22

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 Lowndes County

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

Soil pH

Your soil pH (5.5โ€“6.5) overlaps with Leeks's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Lowndes County is excellent for Leeks โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). 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.

Plant 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 โ€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 4" 0" โ„๏ธ Dormant
Mar 3.5" 5.2" 0" โœ… Rainfall sufficient
Apr 3.5" 4.1" 0" โœ… Rainfall sufficient
May 3.5" 4.6" 0" โœ… Rainfall sufficient
Jun 3.5" 4.9" 0" โœ… Rainfall sufficient
Jul 3.5" 6" 0" โœ… Rainfall sufficient
Aug 3.5" 6.2" 0" โœ… Rainfall sufficient
Sep 3.5" 4.6" 0" โœ… Rainfall sufficient
Oct 3.5" 3.9" 0" โœ… Rainfall sufficient
Nov 3.5" 4.9" 0" โœ… Rainfall sufficient
Dec โ€” 4.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Lowndes County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,550 GDD — county provides 5,163 GDD Excellent fit

Leeks Planting Timeline โ€” Lowndes County, AL

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 โ€“ Feb 22
Transplant Outdoors March 15 Mar 15 โ€“ Mar 29
Direct Sow March 1 Mar 1 โ€“ Mar 22
Harvest June 14 Jun 14 โ€“ Aug 30
Fall Sowing September 4 Sep 4 โ€“ Sep 18

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

90โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

243 days in Lowndes County

Growing Tips for Leeks in Lowndes County

Direct sow Leeks outdoors after March 15 in Lowndes County when soil has warmed and frost danger has passed.

With Lowndes County's clay soil (26% 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 →

Frequently Asked Questions

When should I plant Leeks in Lowndes County, AL?

Lowndes County is in Zone 8a with an average last frost of March 15. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lowndes County, AL?

Lowndes County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lowndes County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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 Lowndes County, AL. Local conditions may vary. Last updated: April 2026.