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When to plant Leeks in Spalding County, GA

In Spalding County, plant Leeks in spring between March 18 and April 8, once soil temps hold above 50°F. Spalding County's last frost averages April 1, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between August 25 and September 8 — roughly 90–150 days before the first frost on November 3.

When to Plant Leeks in Spalding County, GA

Leeks
Spalding County, Georgia Zone 8b July

Your July gardening checklist

July is a pivotal month for Spalding County, Georgia gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 1
Avg. first frost November 3
Soil temp (4") 84°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Pick leeks

    If you can't use it all right away, check the food-preservation section of your planner.

August will be here before you know it — start on
  • First harvests: leeks
  • Fall sowing: 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.

Spalding County, Georgia is in USDA Zone 8b. The average last spring frost is April 1 and the first fall frost is November 3, giving you a growing season of approximately 216 days.

At an elevation of 468 feet, Spalding County receives approximately 51.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°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.

Spalding County, GA (Zone 8b) Long season
216 days
Last Spring Frost April 1
216 growing days
First Fall Frost November 3

Spalding County 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 (51 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: Jun 22 – Sep 7
Recommended (50%) ✓ Fits season (48 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: Jul 1 – Sep 16
Safe Start (90%) ✓ Fits season (46 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: Jul 17 – Oct 2

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 Spalding County

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 Spalding 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
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 4.4" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 5.2" 0" ❄️ Dormant
Apr 3.5" 3.7" 0" ✅ Rainfall sufficient
May 3.5" 5" 0" ✅ Rainfall sufficient
Jun 3.5" 4.2" 0" ✅ Rainfall sufficient
Jul 3.5" 4.8" 0" ✅ Rainfall sufficient
Aug 3.5" 5" 0" ✅ Rainfall sufficient
Sep 3.5" 4.3" 0" ✅ Rainfall sufficient
Oct 3.5" 3" 0.5" 💧 Light watering
Nov 3.5" 3.9" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Spalding 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 ~2,280 GDD — county provides 4,104 GDD Excellent fit

Leeks Planting Timeline — Spalding County, GA

Leeks Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow March 18 Mar 18 – Apr 8
Harvest July 1 Jul 1 – Sep 16
Fall Sowing August 25 Aug 25 – Sep 8

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

Month-by-Month Timeline

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

216 days in Spalding County

Growing Tips for Leeks in Spalding County

Direct sow Leeks outdoors after April 01 in Spalding County when soil has warmed and frost danger has passed.

With Spalding County's clay soil (30% 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 Spalding County, GA?

Spalding County is in Zone 8b with an average last frost of April 1. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.

What planting zone is Spalding County, GA?

Spalding County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is April 1 and first fall frost is November 3.

When should I plant Leeks in Spalding County, GA?

In Spalding County, GA, plant Leeks after the last frost (around April 1) and before the first frost (around November 3). Best results when soil holds above 50°F.

What growing zone is Spalding County, GA for Leeks?

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

Can Leeks grow in Spalding County's climate?

Yes — Leeks grows well in Spalding County's temperate climate. Spalding County averages a 216-day frost-free season, with last frost around April 1 and first frost around November 3.

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Your Spalding County Garden Planner — Free

A 22-page printable planner built for Spalding 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 Spalding County, GA. Local conditions may vary. Last updated: July 2026.

Sources & credits

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