When to plant Leeks in Trinity,
Plant Leeks in Trinity from March 13 to April 3 in spring. Trinity sits in USDA Zone 8a, with last frost around March 27 and first frost on November 6. A second sowing from August 28 to September 11 extends the harvest into fall.
When to Plant Leeks in Trinity, AL
What to do in June
We've pulled the most time-sensitive tasks for Trinity, AL this June and put them front and centre. Tackle them in order.
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Collect leeks at their peak
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Get ahead of July
- 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.
Trinity, Alabama is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.
At an elevation of 386 feet, Morgan County receives approximately 54.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°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.
Trinity Soil Profile
Soil Type
Clay Loam
Soil pH
5.7-6.7
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 Trinity
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (5.7–6.7) overlaps with Leeks's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Morgan County is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.1%). 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 | — | 5" | 0" | ❄️ Dormant |
| Feb | — | 3.9" | 0" | ❄️ Dormant |
| Mar | 3.5" | 5.6" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 4.3" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 5" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 5.3" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 4.2" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.9" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 3.9" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Morgan 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 — Trinity, AL
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 20 | Feb 20 – Mar 6 |
| Transplant Outdoors | March 27 | Mar 27 – Apr 10 |
| Direct Sow | March 13 | Mar 13 – Apr 3 |
| Harvest | June 26 | Jun 26 – Sep 11 |
| Fall Sowing | August 28 | Aug 28 – Sep 11 |
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 8a
📆 Growing Season
224 days in Morgan County
Growing Tips for Leeks in Trinity
Direct sow Leeks outdoors after March 27 in Morgan County when soil has warmed and frost danger has passed.
With Morgan County's clay soil (27% 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
When should I plant Leeks in Trinity, ?
In Trinity, , plant Leeks after the last frost (around March 27) and before the first frost (around November 6). Best results when soil holds above 50°F.
What growing zone is Trinity, for Leeks?
Trinity sits in USDA Zone 8a. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Trinity's climate?
Yes — Leeks grows well in Trinity's temperate climate. Trinity averages a 224-day frost-free season, with last frost around March 27 and first frost around November 6.
Your Morgan County Garden Planner — Free
A 22-page printable planner built for Morgan County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.