Blog

When to Plant Lettuce in DeSoto County, FL

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.

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 97ยฐF, so Lettuce may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

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 (217 days to spare)
Start indoors: Dec 25 Transplant: Jan 22 🍅 Harvest: Feb 26 – May 7
Recommended (50%) ✓ Fits season (217 days to spare)
Start indoors: Jan 4 Transplant: Feb 1 🍅 Harvest: Mar 8 – May 17
Safe Start (90%) ✓ Fits season (193 days to spare)
Start indoors: Feb 2 Transplant: Mar 2 🍅 Harvest: Apr 6 – Jun 15

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 Lettuce's growing requirements.

Soil pH

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

Soil Texture

Sandy soil in DeSoto 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 (1.7%). 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 322-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
0.2″/week
Watering frequency Only during dry spells
Season total 612 gal / 100 sq ft

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 โ€” 2.5" 0" โ„๏ธ Dormant
Feb 3" 2.5" 0.5" ๐Ÿ’ง Light watering
Mar 3" 3.7" 0" โœ… Rainfall sufficient
Apr 3" 2.7" 0.3" ๐Ÿ’ง Light watering
May 3" 3.4" 0" โœ… Rainfall sufficient
Jun 3" 8.3" 0" โœ… Rainfall sufficient
Jul 3" 7.5" 0" โœ… Rainfall sufficient
Aug 3" 6.8" 0" โœ… Rainfall sufficient
Sep 3" 6.1" 0" โœ… Rainfall sufficient
Oct 3" 5.2" 0" โœ… Rainfall sufficient
Nov 3" 2.5" 0.5" ๐Ÿ’ง Light watering
Dec 3" 2.4" 0.6" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in DeSoto County). Supplement amounts are based on average rainfall โ€” 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" 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.

Lettuce needs ~1,024 GDD — county provides 7,348 GDD Excellent fit

Lettuce Planting Timeline โ€” DeSoto County, FL

Lettuce Planting Calendar

Activity When Date Range
Start Indoors January 4 Jan 4 โ€“ Jan 18
Transplant Outdoors February 1 Feb 1 โ€“ Feb 15
Direct Sow January 11 Jan 11 โ€“ Feb 1
Harvest March 8 Mar 8 โ€“ May 17
Fall Sowing October 25 Oct 25 โ€“ Nov 8

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.7"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

30โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9b

๐Ÿ“† Growing Season

322 days in DeSoto County

Growing Tips for Lettuce in DeSoto County

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

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

Summer highs in DeSoto County reach 97ยฐF โ€” grow Lettuce as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 323.0-day season in DeSoto 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 DeSoto County

Bolt-resistant varieties for warm summers โ€” 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 →

๐ŸŒพ 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 35ยฐF, under 45% humidity.

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

Frequently Asked Questions

When should I plant Lettuce in DeSoto County, FL?

DeSoto County is in Zone 9b with an average last frost of February 1. Plan your Lettuce planting based on this frost date โ€” 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.

๐ŸŒฑ

Plan Your Garden with Confidence

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

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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: April 2026.