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When to plant Leeks in Malabar, FL

Malabar gardeners should plant Leeks between December 29 and January 19 in spring. With Malabar's Zone 10a climate (last frost January 19), Leeks needs 90–150 days to mature — plant by July 23 for a full harvest. A second sowing from October 25 to November 8 extends the harvest into fall.

When to Plant Leeks in Malabar, FL

Leeks
Brevard County, Florida Zone 10a June

Your June game plan for Brevard County, Florida

Here's what deserves your attention in Brevard County, Florida this month. Everything below is tailored to Zone 10a and timed around your local frost dates.

Avg. last frost January 19
Avg. first frost December 20
Soil temp (4") 88°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Basket week: leeks

    If you can't use it all right away, check the food-preservation section of your planner.

July prep starts now
  • 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.

Malabar, Florida is in USDA Zone 10a. The average last spring frost is January 19 and the first fall frost is December 20, giving you a growing season of approximately 335 days.

At an elevation of 491 feet, Brevard County receives approximately 52.7 inches of rainfall annually with predominantly sand soil. Summer highs average 104°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.

Malabar, FL (Zone 10a) Year-round
335 days
Last Spring Frost January 19
335 growing days
First Fall Frost December 20

Malabar Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Leeks Planting Risk Windows

Early Start (70% safe) ✓ Fits season (170 days to spare)
Start indoors: Dec 16 Transplant: Jan 13 🍅 Harvest: Apr 14 – Jun 30
Recommended (50%) ✓ Fits season (167 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Apr 20 – Jul 6
Safe Start (90%) ✓ Fits season (142 days to spare)
Start indoors: Jan 20 Transplant: Feb 17 🍅 Harvest: May 19 – Aug 4

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 Malabar

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Leeks prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Brevard 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 (1.6%). 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.

Leeks Water Budget

Plant needs
0.8″/week
Rainfall provides
0.7″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,368 gal / 100 sq ft
Drought risk

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 3.5" 2.2" 1.3" 💧 Light watering
Feb 3.5" 3.1" 0.4" 💧 Light watering
Mar 3.5" 3.5" 0" ✅ Rainfall sufficient
Apr 3.5" 2.5" 1" 💧 Light watering
May 3.5" 3.8" 0" ✅ Rainfall sufficient
Jun 3.5" 7.5" 0" ✅ Rainfall sufficient
Jul 3.5" 6.6" 0" ✅ Rainfall sufficient
Aug 3.5" 6.8" 0" ✅ Rainfall sufficient
Sep 3.5" 7.6" 0" ✅ Rainfall sufficient
Oct 3.5" 5" 0" ✅ Rainfall sufficient
Nov 3.5" 1.9" 1.6" 💧 Light watering
Dec 3.5" 2.3" 1.2" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Brevard 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 ~3,360 GDD — county provides 9,408 GDD Excellent fit

Leeks Planting Timeline — Malabar, FL

Leeks Planting Calendar

Activity When Date Range
Start Indoors December 22 Dec 22 – Jan 5
Transplant Outdoors January 19 Jan 19 – Feb 2
Direct Sow December 29 Dec 29 – Jan 19
Harvest April 20 Apr 20 – Jul 6
Fall Sowing October 25 Oct 25 – Nov 8

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

Month-by-Month Timeline

MonthActivities
January Start Indoors Transplant Outdoors Direct Sow
February Transplant Outdoors
March
April Harvest
May Harvest
June Harvest
July Harvest
August
September
October Fall Sowing
November Fall Sowing
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 10a

📆 Growing Season

335 days in Brevard County

Growing Tips for Leeks in Malabar

Direct sow Leeks outdoors after January 19 in Brevard County when soil has warmed and frost danger has passed.

Sandy soil in Brevard 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 104°F in Brevard 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 →

When should I plant Leeks in Malabar, FL?

In Malabar, FL, plant Leeks after the last frost (around January 19) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Malabar, FL for Leeks?

Malabar sits in USDA Zone 10a. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.

Can Leeks grow in Malabar's climate?

Yes — Leeks grows well in Malabar's temperate climate. Malabar averages a 336-day frost-free season, with last frost around January 19 and first frost around December 20.

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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 Brevard County, FL. Local conditions may vary. Last updated: June 2026.