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When to Plant Butternut Squash in Brewster County, TX

Butternut squash is a popular winter squash with a long neck, small seed cavity, and sweet, nutty orange flesh. It stores exceptionally well for months.

Brewster County, Texas is in USDA Zone 7b. The average last spring frost is March 27 and the first fall frost is November 11, giving you a growing season of approximately 229 days.

At an elevation of 2,724 feet, Brewster County receives approximately 43.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98Β°F, so Butternut Squash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Butternut Squash will need more frequent watering and organic matter to retain nutrients.

Brewster County, TX (Zone 7b) Long season
229 days
Last Spring Frost March 27
229 growing days
First Fall Frost November 11

Brewster County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.9-8.4

Drainage

Well Drained

Monthly Watering Guide for Butternut Squash

Butternut 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 Butternut Squash Needs Rainfall You Supplement Action
Jan β€” 3.2" 0" ❄️ Dormant
Feb β€” 2.1" 0" ❄️ Dormant
Mar 4.3" 2.5" 1.8" πŸ’§ Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 0.8" 3.5" 🚿 Regular watering
Jun 4.3" 1.2" 3.1" 🚿 Regular watering
Jul 4.3" 7.1" 0" βœ… Rainfall sufficient
Aug 4.3" 9.4" 0" βœ… Rainfall sufficient
Sep 4.3" 6.1" 0" βœ… Rainfall sufficient
Oct 4.3" 4" 0.3" πŸ’§ Light watering
Nov 4.3" 2.6" 1.7" πŸ’§ Light watering
Dec β€” 2.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Brewster County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Butternut Squash Planting Timeline β€” Brewster County, TX

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors April 10 Apr 10 – Apr 24
Direct Sow April 3 Apr 3 – Apr 24
Harvest July 10 Jul 10 – Aug 14

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

85–110 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

229 days in Brewster County

Growing Tips for Brewster County

Start seeds indoors 3 weeks early or direct sow after frost. Allow 6-8 feet for sprawling vines. Harvest when the skin is hard and uniformly tan. Cure in the sun for 10 days.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Butternut Squash in Brewster County, TX?

Brewster County is in Zone 7b with an average last frost of March 27. Plan your Butternut Squash planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Brewster County, TX?

Brewster County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 27 and first fall frost is November 11.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Brewster County gardeners in Zone 7b 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 Brewster County, TX. Local conditions may vary. Last updated: April 2026.