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When to Plant Butternut Squash in Douglas County, NV

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.

Douglas County, Nevada is in USDA Zone 6b. The average last spring frost is May 12 and the first fall frost is October 10, giving you a growing season of approximately 151 days.

At an elevation of 5,945 feet, Douglas County receives approximately 9.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Butternut Squash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Butternut Squash will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Butternut Squash successfully. Mulch heavily to conserve soil moisture.

Douglas County, NV (Zone 6b) Moderate season
151 days
Last Spring Frost May 12
151 growing days
First Fall Frost October 10

Douglas County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (15 days to spare)
Start indoors: Mar 27 Transplant: May 15 🍅 Harvest: Aug 14 – Sep 18
Recommended (50%) ✓ Fits season (11 days to spare)
Start indoors: Apr 7 Transplant: May 26 🍅 Harvest: Aug 25 – Sep 29
Safe Start (90%) ✓ Fits season (2 days to spare)
Start indoors: May 2 Transplant: Jun 20 🍅 Harvest: Sep 19 – Oct 24

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
0.3″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 1,670 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Butternut Squash needs ~2,291 GDD — county provides 3,548 GDD Excellent fit

Butternut Squash Planting Timeline โ€” Douglas County, NV

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors April 7 Apr 7 โ€“ Apr 21
Transplant Outdoors May 26 May 26 โ€“ Jun 9
Direct Sow May 19 May 19 โ€“ Jun 9
Harvest August 25 Aug 25 โ€“ Sep 29

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

85โ€“110 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

151 days

Growing Tips for Douglas 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Butternut Squash in Douglas County, NV?

Douglas County is in Zone 6b with an average last frost of May 12. Plan your Butternut Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Douglas County, NV?

Douglas County, Nevada is in USDA Hardiness Zone 6b. The average last spring frost is May 12 and first fall frost is October 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Douglas County gardeners in Zone 6b 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 Douglas County, NV. Local conditions may vary. Last updated: April 2026.