When to Plant Leeks in De Soto Parish, LA
Top priorities for De Soto Parish, Louisiana gardeners in April
Each item below is timed to De Soto Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Start leeks indoors
Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.
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.
De Soto Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 16, giving you a growing season of approximately 250 days.
At an elevation of 327 feet, De Soto Parish receives approximately 52.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Leeks during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.
De Soto Parish Soil Profile
Soil Type
Loam
Soil pH
6.3-6.7
Drainage
Well Drained
Plant 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 De Soto Parish
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (6.3–6.7) is within Leeks's preferred range (6.0–7.0).
Soil Texture
The loam soil in De Soto Parish is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Leeks.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Leeks.
How to Plant Leeks
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Plant Water Budget
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 | — | 5.2" | 0" | ❄️ Dormant |
| Feb | — | 4.4" | 0" | ❄️ Dormant |
| Mar | 3.5" | 4.6" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 3.8" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 4" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 5.2" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 4.6" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 3.8" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.8" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 4.5" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in De Soto Parish). 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 — De Soto Parish, LA
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 4 | Feb 4 – Feb 18 |
| Transplant Outdoors | March 11 | Mar 11 – Mar 25 |
| Direct Sow | February 25 | Feb 25 – Mar 18 |
| Harvest | June 10 | Jun 10 – Aug 26 |
| Fall Sowing | September 7 | Sep 7 – Sep 21 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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 · Only during dry spells
📅 Days to Maturity
90–150 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 8b
📆 Growing Season
250 days in De Soto Parish
Growing Tips for Leeks in De Soto Parish
Direct sow Leeks outdoors after March 11 in De Soto Parish when soil has warmed and frost danger has passed.
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 De Soto Parish, LA?
De Soto Parish is in Zone 8b with an average last frost of March 11. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is De Soto Parish, LA?
De Soto Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 16.
Your De Soto Parish Garden Planner — Free
A 24-page printable planner built for De Soto Parish (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.