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When to Plant Squash (Winter) in Osceola County, FL

Winter squash includes butternut, acorn, delicata, and hubbard varieties grown to full maturity with hard rinds for storage. They develop sweet, dense flesh.

Osceola County, Florida is in USDA Zone 9b. The average last spring frost is January 22 and the first fall frost is December 20, giving you a growing season of approximately 332 days.

At an elevation of 352 feet, Osceola County receives approximately 58.7 inches of rainfall annually with predominantly sand soil. Summer highs average 102ยฐF, so Squash (Winter) may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Squash (Winter) will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Squash (Winter) root diseases.

Osceola County, FL (Zone 9b) Year-round
332 days
Last Spring Frost January 22
332 growing days
First Fall Frost December 20

Osceola County Soil Profile

Soil Type

Sand

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Start indoors: Dec 15 Transplant: Jan 19 🍅 Harvest: Apr 13 – Jun 8
Recommended (50%) ✓ Fits season (185 days to spare)
Start indoors: Dec 25 Transplant: Jan 29 🍅 Harvest: Apr 23 – Jun 18
Safe Start (90%) ✓ Fits season (162 days to spare)
Start indoors: Jan 21 Transplant: Feb 25 🍅 Harvest: May 20 – Jul 15

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
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 923 gal / 100 sq ft
Drought risk

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

Squash (Winter) needs ~2,650 GDD — county provides 8,824 GDD Excellent fit

Squash (Winter) Planting Timeline โ€” Osceola County, FL

Squash (Winter) Planting Calendar

Activity When Date Range
Start Indoors December 25 Dec 25 โ€“ Jan 8
Transplant Outdoors January 29 Jan 29 โ€“ Feb 12
Direct Sow January 22 Jan 22 โ€“ Feb 12
Harvest April 23 Apr 23 โ€“ Jun 18

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

80โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 9b

Growing Season

332 days

Growing Tips for Osceola County

Direct sow after last frost on rich mounds. Allow ample space for sprawling vines. Cure harvested fruits in the sun for 10 days before storing in a cool, dry place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Squash (Winter) in Osceola County, FL?

Osceola County is in Zone 9b with an average last frost of January 22. Plan your Squash (Winter) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Osceola County, FL?

Osceola County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 22 and first fall frost is December 20.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Osceola County gardeners in Zone 9b 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 Osceola County, FL. Local conditions may vary. Last updated: April 2026.