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When to Plant Leeks in DeSoto County, FL

DeSoto County, Florida Zone 9b May

Top priorities for DeSoto County, Florida gardeners in May

Each item below is timed to DeSoto County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 1
Avg. first frost December 20
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 13.3 hrs
  1. Bring in the leeks

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Get ahead of June
  • First harvests: 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.

DeSoto County, Florida is in USDA Zone 9b. The average last spring frost is February 1 and the first fall frost is December 20, giving you a growing season of approximately 322 days.

At an elevation of 214 feet, DeSoto County receives approximately 53.6 inches of rainfall annually with predominantly sand soil. Summer highs average 97°F, so Leeks may need afternoon shade and extra watering during peak heat. 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.

DeSoto County, FL (Zone 9b) Year-round
322 days
Last Spring Frost February 1
322 growing days
First Fall Frost December 20

DeSoto County Soil Profile

Soil Type

Sand

Soil pH

5-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (154 days to spare)
Start indoors: Dec 25 Transplant: Jan 22 🍅 Harvest: Apr 23 – Jul 9
Recommended (50%) ✓ Fits season (154 days to spare)
Start indoors: Jan 4 Transplant: Feb 1 🍅 Harvest: May 3 – Jul 19
Safe Start (90%) ✓ Fits season (130 days to spare)
Start indoors: Feb 2 Transplant: Mar 2 🍅 Harvest: Jun 1 – Aug 17

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 DeSoto County

How your county's soil matches Leeks's growing requirements.

Soil pH

Your soil pH (5.0–6.0) is more acidic than Leeks prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in DeSoto 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 (1.7%). Add 2-3 inches of compost before planting Leeks.

How to Plant Leeks

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 986 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 2.5" 0" ❄️ Dormant
Feb 3.5" 2.5" 1" 💧 Light watering
Mar 3.5" 3.7" 0" ✅ Rainfall sufficient
Apr 3.5" 2.7" 0.8" 💧 Light watering
May 3.5" 3.4" 0.1" 💧 Light watering
Jun 3.5" 8.3" 0" ✅ Rainfall sufficient
Jul 3.5" 7.5" 0" ✅ Rainfall sufficient
Aug 3.5" 6.8" 0" ✅ Rainfall sufficient
Sep 3.5" 6.1" 0" ✅ Rainfall sufficient
Oct 3.5" 5.2" 0" ✅ Rainfall sufficient
Nov 3.5" 2.5" 1" 💧 Light watering
Dec 3.5" 2.4" 1.1" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in DeSoto 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 ~2,730 GDD — county provides 7,348 GDD Excellent fit

Leeks Planting Timeline — DeSoto County, FL

Leeks Planting Calendar

Activity When Date Range
Start Indoors January 4 Jan 4 – Jan 18
Transplant Outdoors February 1 Feb 1 – Feb 15
Direct Sow January 11 Jan 11 – Feb 1
Harvest May 3 May 3 – Jul 19
Fall Sowing October 25 Oct 25 – Nov 8

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

Month-by-Month Timeline

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

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 9b

📆 Growing Season

322 days in DeSoto County

Growing Tips for Leeks in DeSoto County

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

Sandy soil in DeSoto County dries quickly — mulch Leeks with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97°F in DeSoto County, provide afternoon shade for Leeks and water deeply in the morning.

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 DeSoto County, FL?

DeSoto County is in Zone 9b with an average last frost of February 1. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.

What planting zone is DeSoto County, FL?

DeSoto County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 1 and first fall frost is December 20.

🌱

Your DeSoto County Garden Planner — Free

A 24-page printable planner built for DeSoto County (Zone 9b). 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 DeSoto County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.