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When to Plant Acorn Squash in Sumter County, FL

Sumter County, Florida Zone 9b May

Your May game plan for Sumter County, Florida

Each item below is timed to Sumter County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 6
Avg. first frost December 6
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Harvest acorn squash as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Coming up in June — start thinking about
  • First harvests: acorn squash

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Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.

Sumter County, Florida is in USDA Zone 9b. The average last spring frost is February 6 and the first fall frost is December 6, giving you a growing season of approximately 303 days.

At an elevation of 463 feet, Sumter County receives approximately 60.9 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Acorn Squash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Acorn Squash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Acorn Squash root diseases.

Sumter County, FL (Zone 9b) Year-round
303 days
Last Spring Frost February 6
303 growing days
First Fall Frost December 6

Sumter County Soil Profile

Soil Type

Sand

Soil pH

5-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (180 days to spare)
Start indoors: Dec 27 Transplant: Jan 31 🍅 Harvest: Apr 25 – May 30
Recommended (50%) ✓ Fits season (177 days to spare)
Start indoors: Jan 9 Transplant: Feb 13 🍅 Harvest: May 8 – Jun 12
Safe Start (90%) ✓ Fits season (170 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Jun 3 – Jul 8

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.

Soil Compatibility in Sumter County

How your county's soil matches Acorn Squash's growing requirements.

Soil pH

Your soil pH (5.0–6.1) overlaps with Acorn Squash's range (5.5–7.0), though not a perfect match.

Soil Texture

Sandy soil in Sumter County warms quickly in spring but drains fast. Acorn Squash will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Acorn Squash.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Acorn Squash.

How to Plant Acorn Squash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Acorn Squash

4
successive plantings in your 303-day season

Sow every 9.1 weeks. Last sowing by Aug 28 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,911 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Acorn Squash

Acorn Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Acorn Squash Needs Rainfall You Supplement Action
Jan 3.2" 0" ❄️ Dormant
Feb 4.8" 3.3" 1.5" 💧 Light watering
Mar 4.8" 3.6" 1.2" 💧 Light watering
Apr 4.8" 2.7" 2.1" 💧 Light watering
May 4.8" 4.3" 0.5" 💧 Light watering
Jun 4.8" 8" 0" ✅ Rainfall sufficient
Jul 4.8" 8.7" 0" ✅ Rainfall sufficient
Aug 4.8" 8.5" 0" ✅ Rainfall sufficient
Sep 4.8" 7.6" 0" ✅ Rainfall sufficient
Oct 4.8" 6.1" 0" ✅ Rainfall sufficient
Nov 4.8" 2.6" 2.2" 💧 Light watering
Dec 4.8" 2.5" 2.3" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Sumter County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Acorn Squash Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Acorn Squash needs ~1,980 GDD — county provides 6,688 GDD Excellent fit

Acorn Squash Planting Timeline — Sumter County, FL

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors January 9 Jan 9 – Jan 23
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow February 6 Feb 6 – Feb 27
Harvest May 8 May 8 – Jun 12

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 2-3 times/week

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

303 days in Sumter County

Growing Tips for Acorn Squash in Sumter County

Direct sow Acorn Squash outdoors after February 06 in Sumter County when soil has warmed and frost danger has passed.

Sandy soil in Sumter County dries quickly — mulch Acorn Squash with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Sumter County, provide afternoon shade for Acorn Squash and water deeply in the morning.

Common pests for Acorn Squash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Acorn Squash in Sumter County, FL?

Sumter County is in Zone 9b with an average last frost of February 6. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sumter County, FL?

Sumter County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 6 and first fall frost is December 6.

🌱

Your Sumter County Garden Planner — Free

A 24-page printable planner built for Sumter County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Sumter County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.