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When to plant Butternut Squash in Orange County, FL

Plant Butternut Squash in Orange County from February 3 to February 24 in spring. Orange County sits in USDA Zone 10a, with last frost around February 3 and first frost on December 21.

When to Plant Butternut Squash in Orange County, FL

Orange County, Florida Zone 10a July

Your July game plan for Orange County, Florida

If you only do a handful of things in the garden this July, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 3
Avg. first frost December 21
Soil temp (4") 94°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Plan the fall garden

    Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.

  2. Keep heat-survivor crops productive

    Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.

  3. Watch for hurricane prep season

    August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.

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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.

Orange County, Florida is in USDA Zone 10a. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 494 feet, Orange County receives approximately 54.3 inches of rainfall annually with predominantly sand soil. Summer highs average 99°F, so Butternut Squash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Butternut Squash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Butternut Squash root diseases.

Orange County, FL (Zone 10a) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21

Orange County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Butternut Squash Planting Risk Windows

Early Start (70% safe) ✓ Fits season (199 days to spare)
Start indoors: Dec 22 Transplant: Jan 26 🍅 Harvest: Apr 27 – Jun 1
Recommended (50%) ✓ Fits season (188 days to spare)
Start indoors: Jan 6 Transplant: Feb 10 🍅 Harvest: May 12 – Jun 16
Safe Start (90%) ✓ Fits season (165 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: Jun 9 – Jul 14

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 Orange County

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

Soil pH

Your soil pH (5.0–5.8) is more acidic than Butternut Squash prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Butternut Squash.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Butternut Squash.

How to Plant Butternut Squash

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

Butternut Squash Water Budget

Plant needs
1.1″/week
Rainfall provides
0.7″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 2,068 gal / 100 sq ft

Monthly Watering Guide for Butternut Squash

Butternut 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 Butternut Squash Needs Rainfall You Supplement Action
Jan 2.5" 0" ❄️ Dormant
Feb 4.8" 3" 1.8" 💧 Light watering
Mar 4.8" 2.9" 1.9" 💧 Light watering
Apr 4.8" 2.6" 2.2" 💧 Light watering
May 4.8" 4.1" 0.7" 💧 Light watering
Jun 4.8" 7.1" 0" ✅ Rainfall sufficient
Jul 4.8" 7.7" 0" ✅ Rainfall sufficient
Aug 4.8" 8.7" 0" ✅ Rainfall sufficient
Sep 4.8" 6.5" 0" ✅ Rainfall sufficient
Oct 4.8" 4.8" 0" ✅ Rainfall sufficient
Nov 4.8" 2" 2.8" 🚿 Regular watering
Dec 4.8" 2.3" 2.5" 🚿 Regular watering

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

Butternut 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.

Butternut Squash needs ~2,364 GDD — county provides 7,808 GDD Excellent fit

Butternut Squash Planting Timeline — Orange County, FL

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 – Jan 20
Transplant Outdoors February 10 Feb 10 – Feb 24
Direct Sow February 3 Feb 3 – Feb 24
Harvest May 12 May 12 – Jun 16

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

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

321 days in Orange County

Growing Tips for Butternut Squash in Orange County

Direct sow Butternut Squash outdoors after February 03 in Orange County when soil has warmed and frost danger has passed.

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

With summer highs reaching 99°F in Orange County, provide afternoon shade for Butternut Squash and water deeply in the morning.

Common pests for Butternut 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

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 Orange County, FL?

Orange County is in Zone 10a with an average last frost of February 3. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Orange County, FL?

Orange County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is February 3 and first fall frost is December 21.

When should I plant Butternut Squash in Orange County, FL?

In Orange County, FL, plant Butternut Squash after the last frost (around February 3) and before the first frost (around December 21). Best results when soil holds above 50°F.

What growing zone is Orange County, FL for Butternut Squash?

Orange County sits in USDA Zone 10a. Butternut Squash grows reliably in zones 3a through 11b, so it's a good fit here.

Can Butternut Squash grow in Orange County's climate?

Yes — Butternut Squash grows well in Orange County's temperate climate. Orange County averages a 322-day frost-free season, with last frost around February 3 and first frost around December 21.

🌱

Your Orange County Garden Planner — Free

A 22-page printable planner built for Orange County (Zone 10a). 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 Orange County, FL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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