When to plant Leeks in Immokalee, FL
Immokalee's climate puts the Leeks spring window between December 22 and January 12. aim for a steady week of warm soil before planting. A second sowing from February 18 to March 4 extends the harvest into fall.
When to Plant Leeks in Immokalee, FL
This month in Collier County, Florida
Welcome to July in Zone 10b. These are the moves that will have the biggest impact on your growing season.
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Plan the fall garden
Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.
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Keep heat-survivor crops productive
Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.
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Watch for hurricane prep season
August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.
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.
Immokalee, Florida is in USDA Zone 10b. The average last spring frost is January 12 and the first fall frost is April 15, giving you a growing season of approximately 93 days.
At an elevation of 185 feet, Collier County receives approximately 61.3 inches of rainfall annually with predominantly sand soil. Summer highs average 85°F, providing good warmth for Leeks during the growing season. Sandy soil warms quickly in spring — great for early planting — but Leeks will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.
Immokalee Soil Profile
Soil Type
Sand
Soil pH
5-6.2
Drainage
Well Drained
Soil Compatibility in Immokalee
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (5.0–6.2) is more acidic than Leeks prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Collier County warms quickly in spring but drains fast. Leeks will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Leeks.
Organic Matter
Organic matter is low (1.3%). Add 2-3 inches of compost before planting Leeks.
How to Plant Leeks
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Leeks 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 | 3.5" | 2.8" | 0.7" | 💧 Light watering |
| Feb | 3.5" | 3.3" | 0.2" | 💧 Light watering |
| Mar | 3.5" | 4.1" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 2.4" | 1.1" | 💧 Light watering |
| May | 3.5" | 3.7" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 7.5" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 10" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 9" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 8.4" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 5.6" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jan–Oct in Collier 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 — Immokalee, FL
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | December 15 | Dec 15 – Dec 29 |
| Transplant Outdoors | January 12 | Jan 12 – Jan 26 |
| Direct Sow | December 22 | Dec 22 – Jan 12 |
| Harvest | April 13 | Apr 13 – Jun 29 |
| Fall Sowing | February 18 | Feb 18 – Mar 4 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Transplant Outdoors Direct Sow |
| February | Fall Sowing |
| March | Fall Sowing |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | Start Indoors Direct Sow |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · 1-2 times/week
📅 Days to Maturity
90–150 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 10b
📆 Growing Season
93 days in Collier County
Growing Tips for Leeks in Immokalee
Direct sow Leeks outdoors after January 12 in Collier County when soil has warmed and frost danger has passed.
Sandy soil in Collier County dries quickly — mulch Leeks with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
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
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Leeks in Other Locations
When should I plant Leeks in Immokalee, FL?
In Immokalee, FL, plant Leeks after the last frost (around January 1) and before the first frost (around December 31). Best results when soil holds above 50°F.
What growing zone is Immokalee, FL for Leeks?
Immokalee sits in USDA Zone 10b. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Immokalee's climate?
Yes — Leeks grows well in Immokalee's temperate climate. Immokalee averages a 365-day frost-free season, with last frost around January 1 and first frost around December 31.
Your Collier County Garden Planner — Free
A 22-page printable planner built for Collier County (Zone 10b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.