When to plant Leeks in Shelby County, AL
For Shelby County, gardeners: plant Leeks March 12 through April 2 once soil reads 50°F. A second sowing from August 27 to September 10 extends the harvest into fall.
When to Plant Leeks in Shelby County, AL
June to-do list for Shelby County, Alabama
A quick June briefing for Shelby County, Alabama gardeners — what's urgent, what's next, and what can wait.
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It's harvest week for leeks
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
July prep starts now
- First harvests: leeks
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.
Shelby County, Alabama is in USDA Zone 8b. The average last spring frost is March 26 and the first fall frost is November 5, giving you a growing season of approximately 224 days.
At an elevation of 324 feet, Shelby County receives approximately 48.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°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.
Shelby County Soil Profile
Soil Type
Clay Loam
Soil pH
5.6-6.5
Drainage
Well Drained
Leeks Planting Risk Windows
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 Shelby County
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (5.6–6.5) overlaps with Leeks's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Shelby 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
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Leeks Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
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 | — | 4.5" | 0" | ❄️ Dormant |
| Feb | — | 4.5" | 0" | ❄️ Dormant |
| Mar | 3.5" | 4.4" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 3.6" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 3.9" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 4.5" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 4.2" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 3.5" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.5" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 4.4" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Shelby 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 Planting Timeline — Shelby County, AL
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 19 | Feb 19 – Mar 5 |
| Transplant Outdoors | March 26 | Mar 26 – Apr 9 |
| Direct Sow | March 12 | Mar 12 – Apr 2 |
| Harvest | June 25 | Jun 25 – Sep 10 |
| Fall Sowing | August 27 | Aug 27 – Sep 10 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| 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
224 days in Shelby County
Growing Tips for Leeks in Shelby County
Direct sow Leeks outdoors after March 26 in Shelby County when soil has warmed and frost danger has passed.
With Shelby County's clay soil (33% 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
Check more plant combinations with our Companion Planting Checker →
Leeks in Other Locations
Frequently Asked Questions
When should I plant Leeks in Shelby County, AL?
Shelby County is in Zone 8b with an average last frost of March 26. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Shelby County, AL?
Shelby County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 26 and first fall frost is November 5.
When should I plant Leeks in Shelby County, AL?
In Shelby County, AL, plant Leeks after the last frost (around March 26) and before the first frost (around November 5). Best results when soil holds above 50°F.
What growing zone is Shelby County, AL for Leeks?
Shelby 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 Shelby County's climate?
Yes — Leeks grows well in Shelby County's temperate climate. Shelby County averages a 224-day frost-free season, with last frost around March 26 and first frost around November 5.
Your Shelby County Garden Planner — Free
A 22-page printable planner built for Shelby 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.