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When to Plant Lettuce in Brevard County, FL

Brevard County, Florida Zone 10a May

May in Brevard County, Florida — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Brevard County, Florida.

Avg. last frost January 19
Avg. first frost December 20
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Bring in the lettuce

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

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Lettuce is a fast-growing cool-season green available in leaf, romaine, butterhead, and crisphead types. It is the foundation of salads and one of the easiest crops to grow.

Brevard County, 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 Lettuce may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Lettuce will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lettuce root diseases.

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

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (233 days to spare)
Start indoors: Dec 16 Transplant: Jan 13 🍅 Harvest: Feb 17 – Apr 28
Recommended (50%) ✓ Fits season (230 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Feb 23 – May 4
Safe Start (90%) ✓ Fits season (205 days to spare)
Start indoors: Jan 20 Transplant: Feb 17 🍅 Harvest: Mar 24 – Jun 2

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 Brevard County

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Lettuce 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. Lettuce will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Lettuce.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Lettuce.

How to Plant Lettuce

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Succession Planting Lettuce

13
successive plantings in your 335-day season

Sow every 3.4 weeks. Last sowing by Oct 21 to harvest before frost.

For a dedicated fall crop, sow by Oct 25.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 902 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Lettuce

Lettuce needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Lettuce Needs Rainfall You Supplement Action
Jan 3" 2.2" 0.8" 💧 Light watering
Feb 3" 3.1" 0" ✅ Rainfall sufficient
Mar 3" 3.5" 0" ✅ Rainfall sufficient
Apr 3" 2.5" 0.5" 💧 Light watering
May 3" 3.8" 0" ✅ Rainfall sufficient
Jun 3" 7.5" 0" ✅ Rainfall sufficient
Jul 3" 6.6" 0" ✅ Rainfall sufficient
Aug 3" 6.8" 0" ✅ Rainfall sufficient
Sep 3" 7.6" 0" ✅ Rainfall sufficient
Oct 3" 5" 0" ✅ Rainfall sufficient
Nov 3" 1.9" 1.1" 💧 Light watering
Dec 3" 2.3" 0.7" 💧 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.

Lettuce 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.

Lettuce needs ~1,260 GDD — county provides 9,408 GDD Excellent fit

Lettuce Planting Timeline — Brevard County, FL

Lettuce 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 February 23 Feb 23 – May 4
Fall Sowing October 25 Oct 25 – Nov 8

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · 1-2 times/week

📅 Days to Maturity

30–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

335 days in Brevard County

Growing Tips for Lettuce in Brevard County

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

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

Summer highs in Brevard County reach 104°F — grow Lettuce as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 336.0-day season in Brevard County allows multiple plantings of Lettuce. Sow every 15.0 days for continuous harvest.

Common pests for Lettuce in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly every 2 weeks for continuous harvest. Provide afternoon shade in warm weather to delay bolting. Harvest in the morning for crispest leaves.

Recommended Lettuce Varieties for Brevard County

Bolt-resistant varieties for warm summers — grow as spring/fall crop

Jericho Muir Nevada New Red Fire

Companion Planting

Good Companions

Avoid Planting Near

  • Celery

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Lettuce Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let plants bolt and flower. Harvest seed heads when fluffy.
Storage Store airtight; viable 6 years at 35°F, under 45% humidity.

Very easy to save. Let a few plants bolt each season.

Frequently Asked Questions

When should I plant Lettuce in Brevard County, FL?

Brevard County is in Zone 10a with an average last frost of January 19. Plan your Lettuce planting based on this frost date — see the calendar above for exact timing.

What planting zone is Brevard County, FL?

Brevard County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 19 and first fall frost is December 20.

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Your Brevard County Garden Planner — Free

A 24-page printable planner built for Brevard County (Zone 10a). 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 Brevard 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.