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When to Plant Leeks in Volusia County, FL

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.

Volusia County, Florida is in USDA Zone 9a. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 382 feet, Volusia County receives approximately 54.8 inches of rainfall annually with predominantly sand soil. Summer highs average 95ยฐF, so Leeks may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Volusia County, FL (Zone 9a) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21

Volusia County Soil Profile

Soil Type

Sand

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (164 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Apr 20 – Jul 6
Recommended (50%) ✓ Fits season (153 days to spare)
Start indoors: Jan 6 Transplant: Feb 3 🍅 Harvest: May 5 – Jul 21
Safe Start (90%) ✓ Fits season (130 days to spare)
Start indoors: Feb 3 Transplant: Mar 3 🍅 Harvest: Jun 2 – Aug 18

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 Volusia County

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

Soil pH

Your soil pH (5.0โ€“6.3) is more acidic than Leeks prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Volusia County warms quickly in spring but drains fast. Leeks will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.4%). 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
0.1″/week
Watering frequency Only during dry spells
Season total 293 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” 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 โ€” 2.5" 0" โ„๏ธ Dormant
Feb 3.5" 2.7" 0.8" ๐Ÿ’ง Light watering
Mar 3.5" 3" 0.5" ๐Ÿ’ง Light watering
Apr 3.5" 2.9" 0.6" ๐Ÿ’ง Light watering
May 3.5" 4" 0" โœ… Rainfall sufficient
Jun 3.5" 7.5" 0" โœ… Rainfall sufficient
Jul 3.5" 8.6" 0" โœ… Rainfall sufficient
Aug 3.5" 8.4" 0" โœ… Rainfall sufficient
Sep 3.5" 6.1" 0" โœ… Rainfall sufficient
Oct 3.5" 4.8" 0" โœ… Rainfall sufficient
Nov 3.5" 2" 1.5" ๐Ÿ’ง Light watering
Dec 3.5" 2.3" 1.2" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Volusia County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,550 GDD — county provides 6,842 GDD Excellent fit

Leeks Planting Timeline โ€” Volusia County, FL

Leeks Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 โ€“ Jan 20
Transplant Outdoors February 3 Feb 3 โ€“ Feb 17
Direct Sow January 13 Jan 13 โ€“ Feb 3
Harvest May 5 May 5 โ€“ Jul 21
Fall Sowing October 26 Oct 26 โ€“ Nov 9

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

90โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

321 days in Volusia County

Growing Tips for Leeks in Volusia County

Direct sow Leeks outdoors after February 03 in Volusia County when soil has warmed and frost danger has passed.

Sandy soil in Volusia County dries quickly โ€” 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

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Leeks in Volusia County, FL?

Volusia County is in Zone 9a with an average last frost of February 3. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Volusia County, FL?

Volusia County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 3 and first fall frost is December 21.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Volusia County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Volusia County, FL. Local conditions may vary. Last updated: April 2026.