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When to plant Celtuce in Highlands County, FL

Highlands County's climate puts the Celtuce spring window between January 8 and January 29. aim for a steady week of warm soil before planting. A second sowing from October 25 to November 8 extends the harvest into fall.

When to Plant Celtuce in Highlands County, FL

Celtuce (stem lettuce) is a Chinese vegetable grown for its thick, crunchy stem rather than its leaves. The peeled stem has a mild, cucumber-like flavor.

Highlands County, Florida is in USDA Zone 9b. The average last spring frost is January 29 and the first fall frost is December 20, giving you a growing season of approximately 325 days.

At an elevation of 111 feet, Highlands County receives approximately 57.6 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Celtuce may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Celtuce will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celtuce root diseases.

Highlands County, FL (Zone 9b) Year-round
325 days
Last Spring Frost January 29
325 growing days
First Fall Frost December 20

Highlands County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.8

Drainage

Well Drained

Monthly Watering Guide for Celtuce

Celtuce needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Celtuce Needs Rainfall You Supplement Action
Jan 4.3" 2.4" 1.9" 💧 Light watering
Feb 4.3" 3.1" 1.2" 💧 Light watering
Mar 4.3" 3.6" 0.7" 💧 Light watering
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 8.5" 0" ✅ Rainfall sufficient
Jul 4.3" 7.5" 0" ✅ Rainfall sufficient
Aug 4.3" 9.1" 0" ✅ Rainfall sufficient
Sep 4.3" 8" 0" ✅ Rainfall sufficient
Oct 4.3" 5.1" 0" ✅ Rainfall sufficient
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 4.3" 2.3" 2" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Highlands County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celtuce Planting Timeline — Highlands County, FL

Celtuce Planting Calendar

Activity When Date Range
Start Indoors January 1 Jan 1 – Jan 15
Transplant Outdoors January 29 Jan 29 – Feb 12
Direct Sow January 8 Jan 8 – Jan 29
Harvest April 2 Apr 2 – May 14
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
March
April Harvest
May Harvest
June
July
August
September
October Fall Sowing
November Fall Sowing
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 9b

📆 Growing Season

325 days in Highlands County

Growing Tips for Highlands County

Direct sow in spring or start indoors. Space 12 inches apart. Harvest when stems are about 1 inch in diameter. Peel the tough outer skin to reveal the tender center.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celtuce in Highlands County, FL?

Highlands County is in Zone 9b with an average last frost of January 29. Plan your Celtuce planting based on this frost date — see the calendar above for exact timing.

What planting zone is Highlands County, FL?

Highlands County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 29 and first fall frost is December 20.

When should I plant Celtuce in Highlands County, FL?

In Highlands County, FL, plant Celtuce after the last frost (around January 29) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Highlands County, FL for Celtuce?

Highlands County sits in USDA Zone 9b. Celtuce grows reliably in zones 3a through 10b, so it's a good fit here.

Can Celtuce grow in Highlands County's climate?

Yes — Celtuce grows well in Highlands County's temperate climate. Highlands County averages a 326-day frost-free season, with last frost around January 29 and first frost around December 20.

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Your Highlands County Garden Planner — Free

A 22-page printable planner built for Highlands 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 Highlands County, FL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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