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When to Plant Celtuce in Tulare County, CA

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.

Tulare County, California is in USDA Zone 9a. The average last spring frost is February 17 and the first fall frost is December 3, giving you a growing season of approximately 289 days.

At an elevation of 5,836 feet, Tulare County receives approximately 18.4 inches of rainfall annually with predominantly loam soil. Summer highs average 95Β°F, so Celtuce may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Celtuce successfully. Mulch heavily to conserve soil moisture.

Tulare County, CA (Zone 9a) Year-round
289 days
Last Spring Frost February 17
289 growing days
First Fall Frost December 3

Tulare County Soil Profile

Soil Type

Loam

Soil pH

5.9-7.2

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 β€” 3.6" 0" ❄️ Dormant
Feb 4.3" 3.7" 0.6" πŸ’§ Light watering
Mar 4.3" 3" 1.3" πŸ’§ Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 0.5" 3.8" 🚿 Regular watering
Jun 4.3" 0.1" 4.2" 🚿 Regular watering
Jul 4.3" 0" 4.3" 🚿 Regular watering
Aug 4.3" 0" 4.3" 🚿 Regular watering
Sep 4.3" 0.2" 4.1" 🚿 Regular watering
Oct 4.3" 0.7" 3.6" 🚿 Regular watering
Nov 4.3" 1.7" 2.6" 🚿 Regular watering
Dec 4.3" 3.4" 0.9" πŸ’§ Light watering

Water needs are for active growing months only (Feb–Dec in Tulare County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Celtuce Planting Timeline β€” Tulare County, CA

Celtuce Planting Calendar

Activity When Date Range
Start Indoors January 20 Jan 20 – Feb 3
Transplant Outdoors February 17 Feb 17 – Mar 3
Direct Sow January 27 Jan 27 – Feb 17
Harvest April 21 Apr 21 – Jun 2
Fall Sowing October 8 Oct 8 – Oct 22

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

60–90 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 9a

πŸ“† Growing Season

289 days in Tulare County

Growing Tips for Tulare 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 Tulare County, CA?

Tulare County is in Zone 9a with an average last frost of February 17. Plan your Celtuce planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Tulare County, CA?

Tulare County, California is in USDA Hardiness Zone 9a. The average last spring frost is February 17 and first fall frost is December 3.

🌱

Plan Your Garden with Confidence

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

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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 Tulare County, CA. Local conditions may vary. Last updated: April 2026.