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When to Plant Butternut Squash in Montgomery County, AR

Montgomery County, Arkansas Zone 8a May

This month in Montgomery County, Arkansas

Your garden in Montgomery County, Arkansas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 27
Avg. first frost November 6
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs

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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.

Montgomery County, Arkansas is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.

At an elevation of 850 feet, Montgomery County receives approximately 46.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Butternut Squash during the growing season.

Montgomery County, AR (Zone 8a) Long season
224 days
Last Spring Frost March 27
224 growing days
First Fall Frost November 6
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Montgomery County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (87 days to spare)
Start indoors: Feb 17 Transplant: Mar 31 🍅 Harvest: Jun 30 – Aug 4
Recommended (50%) ✓ Fits season (84 days to spare)
Start indoors: Feb 27 Transplant: Apr 10 🍅 Harvest: Jul 10 – Aug 14
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Mar 18 Transplant: Apr 29 🍅 Harvest: Jul 29 – Sep 2

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 Montgomery County

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

Soil pH

Your soil pH (5.3–6.9) overlaps with Butternut Squash's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Montgomery County is excellent for Butternut Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Butternut Squash.

How to Plant Butternut Squash

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

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 451 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 3.4" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 4.8" 4.4" 0.4" 💧 Light watering
Apr 4.8" 3.6" 1.2" 💧 Light watering
May 4.8" 3.8" 1" 💧 Light watering
Jun 4.8" 4.4" 0.4" 💧 Light watering
Jul 4.8" 4.8" 0" ✅ Rainfall sufficient
Aug 4.8" 4.9" 0" ✅ Rainfall sufficient
Sep 4.8" 3.6" 1.2" 💧 Light watering
Oct 4.8" 3.3" 1.5" 💧 Light watering
Nov 4.8" 3.9" 0.9" 💧 Light watering
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Montgomery 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 ~1,560 GDD — county provides 3,584 GDD Excellent fit

Butternut Squash Planting Timeline — Montgomery County, AR

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors April 10 Apr 10 – Apr 24
Direct Sow April 3 Apr 3 – Apr 24
Harvest July 10 Jul 10 – Aug 14

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Only during dry spells

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

224 days in Montgomery County

Growing Tips for Butternut Squash in Montgomery County

Direct sow Butternut Squash outdoors after March 27 in Montgomery County when soil has warmed and frost danger has passed.

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 Montgomery County, AR?

Montgomery County is in Zone 8a with an average last frost of March 27. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montgomery County, AR?

Montgomery County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 6.

🌱

Your Montgomery County Garden Planner — Free

A 24-page printable planner built for Montgomery County (Zone 8a). 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 Montgomery County, AR. 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.