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When to Plant Spaghetti Squash in Llano 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.

Llano County, Texas is in USDA Zone 8a. The average last spring frost is March 19 and the first fall frost is November 13, giving you a growing season of approximately 239 days.

At an elevation of 1,968 feet, Llano County receives approximately 50.4 inches of rainfall annually with predominantly loam soil. Summer highs average 92ยฐF, providing good warmth for Spaghetti Squash during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spaghetti Squash root diseases.

Llano County, TX (Zone 8a) Long season
239 days
Last Spring Frost March 19
239 growing days
First Fall Frost November 13

Llano County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Start indoors: Feb 8 Transplant: Mar 22 🍅 Harvest: Jun 21 – Jul 19
Recommended (50%) ✓ Fits season (106 days to spare)
Start indoors: Feb 19 Transplant: Apr 2 🍅 Harvest: Jul 2 – Jul 30
Safe Start (90%) ✓ Fits season (95 days to spare)
Start indoors: Mar 17 Transplant: Apr 28 🍅 Harvest: Jul 28 – Aug 25

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,058 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Spaghetti Squash needs ~1,758 GDD — county provides 4,541 GDD Excellent fit

Spaghetti Squash Planting Timeline โ€” Llano County, TX

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 โ€“ Mar 5
Transplant Outdoors April 2 Apr 2 โ€“ Apr 16
Direct Sow March 26 Mar 26 โ€“ Apr 16
Harvest July 2 Jul 2 โ€“ Jul 30

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

85โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

239 days

Growing Tips for Llano County

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

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Frequently Asked Questions

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

Llano County is in Zone 8a with an average last frost of March 19. Plan your Spaghetti Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Llano County, TX?

Llano County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 19 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Llano County gardeners in Zone 8a 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 Llano County, TX. Local conditions may vary. Last updated: April 2026.