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When to Plant Crookneck Squash in Tulare County, CA

Tulare County, California Zone 9a April

April to-do list for Tulare County, California

Welcome to April in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost February 17
Avg. first frost December 3
Soil temp (4") 50°F
Watering High
Pest pressure High
Daylight 12.9 hrs
  1. Harvest crookneck squash as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

A few tasks this April that'll pay off in May
  • First harvests: crookneck squash

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Yellow crookneck squash is a summer squash with a curved neck and bumpy, bright yellow skin. It has a buttery flavor and is best harvested young when 4-6 inches long.

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 95°F, so Crookneck Squash may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Crookneck Squash 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
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Tulare County Soil Profile

Soil Type

Loam

Soil pH

5.9-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (218 days to spare)
Start indoors: Dec 31 Transplant: Feb 4 🍅 Harvest: Mar 25 – Apr 22
Recommended (50%) ✓ Fits season (205 days to spare)
Start indoors: Jan 20 Transplant: Feb 24 🍅 Harvest: Apr 14 – May 12
Safe Start (90%) ✓ Fits season (179 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: May 29 – Jun 26

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 Tulare County

How your county's soil matches Crookneck Squash's growing requirements.

Soil pH

Your soil pH (5.9–7.2) overlaps with Crookneck Squash's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Tulare County is excellent for Crookneck Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Crookneck Squash.

How to Plant Crookneck Squash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Crookneck Squash

7
successive plantings in your 289-day season

Sow every 5.1 weeks. Last sowing by Oct 04 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.3″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 2,272 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Crookneck Squash

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

Month Crookneck Squash Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 4.3" 3.7" 0.6" 💧 Light watering
Mar 4.3" 3" 1.3" 💧 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" 💧 Light watering

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

Crookneck Squash 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.

Crookneck Squash needs ~1,116 GDD — county provides 6,162 GDD Excellent fit

Crookneck Squash Planting Timeline — Tulare County, CA

Crookneck Squash Planting Calendar

Activity When Date Range
Start Indoors January 20 Jan 20 – Feb 3
Transplant Outdoors February 24 Feb 24 – Mar 10
Direct Sow February 17 Feb 17 – Mar 10
Harvest April 14 Apr 14 – May 12

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

289 days in Tulare County

Growing Tips for Crookneck Squash in Tulare County

Direct sow Crookneck Squash outdoors after February 17 in Tulare County when soil has warmed and frost danger has passed.

Your generous 290.0-day season in Tulare County allows multiple plantings of Crookneck Squash. Sow every 22.0 days for continuous harvest.

Common pests for Crookneck Squash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

Tulare County receives only 18" of rain annually. Crookneck Squash needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost on mounds. Pick frequently while small for tender texture. Skin becomes tough and warty on larger fruits. Very productive in warm weather.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crookneck Squash in Tulare County, CA?

Tulare County is in Zone 9a with an average last frost of February 17. Plan your Crookneck Squash planting based on this frost date — 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.

🌱

Your Tulare County Garden Planner — Free

A 24-page printable planner built for Tulare County (Zone 9a). 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 Tulare County, CA. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.