Blog

When to Plant Kabocha in Gonzales County, TX

Gonzales County, Texas Zone 9a May

Your May gardening checklist

We've pulled the most time-sensitive tasks for Gonzales County, Texas this May and put them front and centre. Tackle them in order.

Avg. last frost February 28
Avg. first frost November 28
Soil temp (4") 62°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
June will be here before you know it — start on
  • First harvests: kabocha

Instant PDF download. No spam, unsubscribe any time.

Kabocha is a Japanese winter squash with an exceptionally sweet, dense, chestnut-like flesh and dark green skin. It is a favorite in Asian cuisine for its rich, dry texture.

Gonzales County, Texas is in USDA Zone 9a. The average last spring frost is February 28 and the first fall frost is November 28, giving you a growing season of approximately 273 days.

At an elevation of 4,385 feet, Gonzales County receives approximately 67 inches of rainfall annually with predominantly loam soil. Summer highs average 97°F, so Kabocha may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kabocha root diseases.

Gonzales County, TX (Zone 9a) Year-round
273 days
Last Spring Frost February 28
273 growing days
First Fall Frost November 28

Gonzales County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Start indoors: Jan 18 Transplant: Feb 22 🍅 Harvest: May 24 – Jun 21
Recommended (50%) ✓ Fits season (147 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: Jun 6 – Jul 4
Safe Start (90%) ✓ Fits season (138 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: Jun 29 – Jul 27

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 Gonzales County

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

Soil pH

Your soil pH (6.2–7.4) is within Kabocha's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Kabocha.

How to Plant Kabocha

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Kabocha

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

Month Kabocha Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 4.3" 2" 2.3" 🚿 Regular watering
Mar 4.3" 4.3" 0" ✅ Rainfall sufficient
Apr 4.3" 7.7" 0" ✅ Rainfall sufficient
May 4.3" 10.3" 0" ✅ Rainfall sufficient
Jun 4.3" 9.8" 0" ✅ Rainfall sufficient
Jul 4.3" 9" 0" ✅ Rainfall sufficient
Aug 4.3" 8.8" 0" ✅ Rainfall sufficient
Sep 4.3" 5.3" 0" ✅ Rainfall sufficient
Oct 4.3" 4.3" 0" ✅ Rainfall sufficient
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 1.6" 0" ❄️ Dormant

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

Kabocha 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.

Kabocha needs ~2,104 GDD — county provides 6,233 GDD Excellent fit

Kabocha Planting Timeline — Gonzales County, TX

Kabocha Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors March 7 Mar 7 – Mar 21
Direct Sow February 28 Feb 28 – Mar 21
Harvest June 6 Jun 6 – Jul 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

85–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

273 days in Gonzales County

Growing Tips for Kabocha in Gonzales County

Direct sow Kabocha outdoors after February 28 in Gonzales County when soil has warmed and frost danger has passed.

With summer highs reaching 97°F in Gonzales County, provide afternoon shade for Kabocha and water deeply in the morning.

Common pests for Kabocha 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 frost or start indoors. Harvest when the skin is hard and dull. The stem should be dry and corky. Stores well for 3-4 months in a cool, dry place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kabocha in Gonzales County, TX?

Gonzales County is in Zone 9a with an average last frost of February 28. Plan your Kabocha planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gonzales County, TX?

Gonzales County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 28 and first fall frost is November 28.

🌱

Your Gonzales County Garden Planner — Free

A 24-page printable planner built for Gonzales 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Gonzales 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.