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When to Plant Butternut Squash in Lauderdale County, TN

Lauderdale County, Tennessee Zone 7a April

Your April game plan for Lauderdale County, Tennessee

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

Avg. last frost March 29
Avg. first frost November 2
Soil temp (4") 55°F
Watering Moderate
Pest pressure Moderate
Daylight 12.9 hrs
  1. Move butternut squash from tray to bed

    Frost risk is low now in Lauderdale County, Tennessee. If you've been covering beds overnight, you can stop.

  2. Direct-sow butternut squash

    These tolerate cool soil, so you're not gambling by sowing now.

  3. Start butternut squash under lights

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

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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.

Lauderdale County, Tennessee is in USDA Zone 7a. The average last spring frost is March 29 and the first fall frost is November 2, giving you a growing season of approximately 218 days.

At an elevation of 2,139 feet, Lauderdale County receives approximately 43 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Butternut Squash during the growing season.

Lauderdale County, TN (Zone 7a) Long season
218 days
Last Spring Frost March 29
218 growing days
First Fall Frost November 2
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Lauderdale County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (82 days to spare)
Start indoors: Feb 20 Transplant: Apr 3 🍅 Harvest: Jul 3 – Aug 7
Recommended (50%) ✓ Fits season (78 days to spare)
Start indoors: Mar 1 Transplant: Apr 12 🍅 Harvest: Jul 12 – Aug 16
Safe Start (90%) ✓ Fits season (82 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 Lauderdale County

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

Soil pH

Your soil pH (5.7–6.8) overlaps with Butternut Squash's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Butternut Squash.

Organic Matter

Organic matter is moderate (3.0%). 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
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

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 4.1" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.8" 4" 0.8" 💧 Light watering
Apr 4.8" 3.7" 1.1" 💧 Light watering
May 4.8" 3.8" 1" 💧 Light watering
Jun 4.8" 3.4" 1.4" 💧 Light watering
Jul 4.8" 4.2" 0.6" 💧 Light watering
Aug 4.8" 3.7" 1.1" 💧 Light watering
Sep 4.8" 3.1" 1.7" 💧 Light watering
Oct 4.8" 2.6" 2.2" 💧 Light watering
Nov 4.8" 3.2" 1.6" 💧 Light watering
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lauderdale 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 ~1,999 GDD — county provides 4,469 GDD Excellent fit

Butternut Squash Planting Timeline — Lauderdale County, TN

Butternut Squash Planting Calendar

Activity When Date Range
Start Indoors March 1 Mar 1 – Mar 15
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow April 5 Apr 5 – Apr 26
Harvest July 12 Jul 12 – Aug 16

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

Month-by-Month Timeline

MonthActivities
January
February
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 · Natural rainfall sufficient

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

218 days in Lauderdale County

Growing Tips for Butternut Squash in Lauderdale County

Direct sow Butternut Squash outdoors after March 29 in Lauderdale 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 Lauderdale County, TN?

Lauderdale County is in Zone 7a with an average last frost of March 29. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lauderdale County, TN?

Lauderdale County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is March 29 and first fall frost is November 2.

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Your Lauderdale County Garden Planner — Free

A 24-page printable planner built for Lauderdale County (Zone 7a). 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 Lauderdale County, TN. Local conditions may vary. Last updated: April 2026.

Sources & credits

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