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When to plant Butternut Squash in Lamar County, AL

Plant Butternut Squash in Lamar County from March 30 to April 20 in spring. Lamar County sits in USDA Zone 8a, with last frost around March 23 and first frost on November 6.

When to Plant Butternut Squash in Lamar County, AL

Lamar County, Alabama Zone 8a June

June in the garden — Lamar County, Alabama

We've pulled the most time-sensitive tasks for Lamar County, Alabama this June and put them front and centre. Tackle them in order.

Avg. last frost March 23
Avg. first frost November 6
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 14.2 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.

Lamar County, Alabama is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.

At an elevation of 69 feet, Lamar County receives approximately 62 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88°F, providing good warmth for Butternut Squash during the growing season. Clay soil retains moisture well for Butternut Squash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Butternut Squash root diseases.

Lamar County, AL (Zone 8a) Long season
228 days
Last Spring Frost March 23
228 growing days
First Fall Frost November 6

Lamar County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Butternut Squash Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Start indoors: Feb 14 Transplant: Mar 28 🍅 Harvest: Jun 27 – Aug 1
Recommended (50%) ✓ Fits season (88 days to spare)
Start indoors: Feb 23 Transplant: Apr 6 🍅 Harvest: Jul 6 – Aug 10
Safe Start (90%) ✓ Fits season (87 days to spare)
Start indoors: Mar 16 Transplant: Apr 27 🍅 Harvest: Jul 27 – Aug 31

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 Lamar County

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

Soil pH

Your soil pH (5.3–6.7) overlaps with Butternut Squash's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help 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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 4.7" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.8" 6.8" 0" ✅ Rainfall sufficient
Apr 4.8" 4.2" 0.6" 💧 Light watering
May 4.8" 5.3" 0" ✅ Rainfall sufficient
Jun 4.8" 5.9" 0" ✅ Rainfall sufficient
Jul 4.8" 5.8" 0" ✅ Rainfall sufficient
Aug 4.8" 6.8" 0" ✅ Rainfall sufficient
Sep 4.8" 5" 0" ✅ Rainfall sufficient
Oct 4.8" 4.1" 0.7" 💧 Light watering
Nov 4.8" 4.6" 0.2" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lamar 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 3,648 GDD Excellent fit

Butternut Squash Planting Timeline — Lamar County, AL

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 – Mar 9
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow March 30 Mar 30 – Apr 20
Harvest July 6 Jul 6 – Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Natural rainfall sufficient

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

228 days in Lamar County

Growing Tips for Butternut Squash in Lamar County

Direct sow Butternut Squash outdoors after March 23 in Lamar County when soil has warmed and frost danger has passed.

With Lamar County's clay soil (28% clay), work in 3-4 inches of compost before planting Butternut Squash. Avoid tilling when soil is wet to prevent compaction.

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 Lamar County, AL?

Lamar County is in Zone 8a with an average last frost of March 23. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lamar County, AL?

Lamar County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 6.

When should I plant Butternut Squash in Lamar County, AL?

In Lamar County, AL, plant Butternut Squash after the last frost (around March 23) and before the first frost (around November 6). Best results when soil holds above 50°F.

What growing zone is Lamar County, AL for Butternut Squash?

Lamar County sits in USDA Zone 8a. Butternut Squash grows reliably in zones 3a through 11b, so it's a good fit here.

Can Butternut Squash grow in Lamar County's climate?

Yes — Butternut Squash grows well in Lamar County's temperate climate. Lamar County averages a 228-day frost-free season, with last frost around March 23 and first frost around November 6.

🌱

Your Lamar County Garden Planner — Free

A 22-page printable planner built for Lamar 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 Lamar County, AL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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