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When to Plant Delicata Squash in Alfalfa County, OK

Delicata squash is a winter squash with an edible skin and sweet, creamy orange flesh. Its compact vines make it suitable for smaller gardens.

Alfalfa County, Oklahoma is in USDA Zone 6b. The average last spring frost is April 7 and the first fall frost is October 31, giving you a growing season of approximately 207 days.

At an elevation of 835 feet, Alfalfa County receives approximately 26.3 inches of rainfall annually with predominantly loam soil. Summer highs average 85ยฐF, providing good warmth for Delicata Squash during the growing season.

Alfalfa County, OK (Zone 6b) Long season
207 days
Last Spring Frost April 7
207 growing days
First Fall Frost October 31

Alfalfa County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Start indoors: Feb 23 Transplant: Apr 13 🍅 Harvest: Jul 6 – Aug 10
Recommended (50%) ✓ Fits season (74 days to spare)
Start indoors: Mar 3 Transplant: Apr 21 🍅 Harvest: Jul 14 – Aug 18
Safe Start (90%) ✓ Fits season (78 days to spare)
Start indoors: Mar 17 Transplant: May 5 🍅 Harvest: Jul 28 – Sep 1

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
0.5″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,031 gal / 100 sq ft
Drought risk

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

Delicata Squash needs ~1,238 GDD — county provides 2,846 GDD Excellent fit

Delicata Squash Planting Timeline โ€” Alfalfa County, OK

Delicata Squash Planting Calendar

Activity When Date Range
Start Indoors March 3 Mar 3 โ€“ Mar 17
Transplant Outdoors April 21 Apr 21 โ€“ May 5
Direct Sow April 14 Apr 14 โ€“ May 5
Harvest July 14 Jul 14 โ€“ Aug 18

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

80โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

207 days

Growing Tips for Alfalfa County

Direct sow after last frost on mounds. Harvest when skin is hard and ivory with green stripes. The thin skin does not need peeling. Stores 2-3 months in a cool place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Delicata Squash in Alfalfa County, OK?

Alfalfa County is in Zone 6b with an average last frost of April 7. Plan your Delicata Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Alfalfa County, OK?

Alfalfa County, Oklahoma is in USDA Hardiness Zone 6b. The average last spring frost is April 7 and first fall frost is October 31.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Alfalfa 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 Alfalfa County, OK. Local conditions may vary. Last updated: April 2026.