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When to Plant Spaghetti Squash in Calhoun County, TX

Spaghetti squash is a winter squash whose cooked flesh separates into pasta-like strands. It is a popular low-carb alternative to pasta.

Calhoun County, Texas is in USDA Zone 9a. The average last spring frost is February 16 and the first fall frost is December 7, giving you a growing season of approximately 294 days.

At an elevation of 215 feet, Calhoun County receives approximately 59.5 inches of rainfall annually with predominantly loam soil. Summer highs average 99ยฐF, so Spaghetti Squash may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spaghetti Squash root diseases.

Calhoun County, TX (Zone 9a) Year-round
294 days
Last Spring Frost February 16
294 growing days
First Fall Frost December 7

Calhoun County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (185 days to spare)
Start indoors: Dec 26 Transplant: Jan 30 🍅 Harvest: May 1 – May 29
Recommended (50%) ✓ Fits season (168 days to spare)
Start indoors: Jan 19 Transplant: Feb 23 🍅 Harvest: May 25 – Jun 22
Safe Start (90%) ✓ Fits season (159 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: Jun 16 – Jul 14

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 Calhoun County

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

Soil pH

Your soil pH (6.2โ€“7.8) overlaps with Spaghetti Squash's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Calhoun County is excellent for Spaghetti Squash โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Spaghetti Squash

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 401 gal / 100 sq ft
Spaghetti Squash needs ~2,243 GDD — county provides 7,153 GDD Excellent fit

Spaghetti Squash Planting Timeline โ€” Calhoun County, TX

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors January 19 Jan 19 โ€“ Feb 2
Transplant Outdoors February 23 Feb 23 โ€“ Mar 9
Direct Sow February 16 Feb 16 โ€“ Mar 9
Harvest May 25 May 25 โ€“ Jun 22

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

85โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

294 days in Calhoun County

Growing Tips for Spaghetti Squash in Calhoun County

Direct sow Spaghetti Squash outdoors after February 16 in Calhoun County when soil has warmed and frost danger has passed.

With summer highs reaching 99ยฐF in Calhoun County, provide afternoon shade for Spaghetti Squash and water deeply in the morning.

Common pests for Spaghetti Squash 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 on mounds after last frost. Harvest when skin turns golden yellow and is hard. Store in a cool, dry place for 2-3 months. Bake or microwave halves until tender.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Spaghetti Squash in Calhoun County, TX?

Calhoun County is in Zone 9a with an average last frost of February 16. Plan your Spaghetti Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Calhoun County, TX?

Calhoun County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 16 and first fall frost is December 7.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Calhoun County, TX. Local conditions may vary. Last updated: April 2026.