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When to Plant Zucchini in Nueces County, TX

Nueces County, Texas Zone 10a May

May in the garden — Nueces County, Texas

Welcome to May in Zone 10a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost February 10
Avg. first frost December 10
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Pick zucchini

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Looking ahead to June
  • First harvests: zucchini

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Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Nueces County, Texas is in USDA Zone 10a. The average last spring frost is February 10 and the first fall frost is December 10, giving you a growing season of approximately 303 days.

At an elevation of 1,586 feet, Nueces County receives approximately 53.3 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Zucchini may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Zucchini root diseases.

Nueces County, TX (Zone 10a) Year-round
303 days
Last Spring Frost February 10
303 growing days
First Fall Frost December 10

Nueces County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (203 days to spare)
Start indoors: Dec 22 Transplant: Jan 26 🍅 Harvest: Mar 16 – May 11
Recommended (50%) ✓ Fits season (191 days to spare)
Start indoors: Jan 13 Transplant: Feb 17 🍅 Harvest: Apr 7 – Jun 2
Safe Start (90%) ✓ Fits season (173 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: May 5 – Jun 30

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 Nueces County

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

Soil pH

Your soil pH (6.8–7.8) overlaps with Zucchini's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Nueces County is excellent for Zucchini — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Zucchini.

How to Plant Zucchini

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

Succession Planting Zucchini

8
successive plantings in your 303-day season

Sow every 5.1 weeks. Last sowing by Oct 11 to harvest before frost.

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
0.7″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,254 gal / 100 sq ft

Monthly Watering Guide for Zucchini

Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Zucchini Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 5.2" 1.6" 3.6" 🚿 Regular watering
Mar 5.2" 3.6" 1.6" 💧 Light watering
Apr 5.2" 5.4" 0" ✅ Rainfall sufficient
May 5.2" 7.5" 0" ✅ Rainfall sufficient
Jun 5.2" 8.9" 0" ✅ Rainfall sufficient
Jul 5.2" 7.2" 0" ✅ Rainfall sufficient
Aug 5.2" 5.9" 0" ✅ Rainfall sufficient
Sep 5.2" 5.4" 0" ✅ Rainfall sufficient
Oct 5.2" 3.1" 2.1" 💧 Light watering
Nov 5.2" 1.7" 3.5" 🚿 Regular watering
Dec 5.2" 1.3" 3.9" 🚿 Regular watering

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

Zucchini 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.

Zucchini needs ~1,116 GDD — county provides 6,460 GDD Excellent fit

Zucchini Planting Timeline — Nueces County, TX

Zucchini Planting Calendar

Activity When Date Range
Start Indoors January 13 Jan 13 – Jan 27
Transplant Outdoors February 17 Feb 17 – Mar 3
Direct Sow February 10 Feb 10 – Mar 3
Harvest April 7 Apr 7 – Jun 2

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · 1-2 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 10a

📆 Growing Season

303 days in Nueces County

Growing Tips for Zucchini in Nueces County

Direct sow Zucchini outdoors after February 10 in Nueces County when soil has warmed and frost danger has passed.

Your generous 304.0-day season in Nueces County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.

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

General growing tips

Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Zucchini in Nueces County, TX?

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

What planting zone is Nueces County, TX?

Nueces County, Texas is in USDA Hardiness Zone 10a. The average last spring frost is February 10 and first fall frost is December 10.

🌱

Your Nueces County Garden Planner — Free

A 24-page printable planner built for Nueces 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 Nueces County, TX. 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.