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When to Plant Hubbard Squash in Lexington County, SC

Lexington County, South Carolina Zone 8a April

This month in Lexington County, South Carolina

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

Avg. last frost March 22
Avg. first frost November 10
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 12.9 hrs
  1. Transplant hubbard squash outside

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

  2. Fire up the seed-starting tray: hubbard squash

    Label every cell. You will absolutely forget which is which otherwise.

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Hubbard squash is a large, bumpy-skinned winter squash with dense, sweet, dry flesh ideal for baking and pies. The hard shell allows storage for 6 months or more.

Lexington County, South Carolina is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 10, giving you a growing season of approximately 233 days.

At an elevation of 214 feet, Lexington County receives approximately 50.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Hubbard Squash during the growing season. Sandy soil warms quickly in spring — great for early planting — but Hubbard Squash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hubbard Squash root diseases.

Lexington County, SC (Zone 8a) Long season
233 days
Last Spring Frost March 22
233 growing days
First Fall Frost November 10

Lexington County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (76 days to spare)
Start indoors: Feb 17 Transplant: Mar 31 🍅 Harvest: Jul 14 – Aug 18
Recommended (50%) ✓ Fits season (79 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: Jul 19 – Aug 23
Safe Start (90%) ✓ Fits season (72 days to spare)
Start indoors: Mar 18 Transplant: Apr 29 🍅 Harvest: Aug 12 – Sep 16

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 Lexington County

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

Soil pH

Your soil pH (4.8–6.2) is more acidic than Hubbard Squash prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Hubbard Squash.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Hubbard Squash.

How to Plant Hubbard Squash

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Hubbard Squash

Hubbard Squash needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Hubbard Squash Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 4.3" 4.6" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.4" 0" ✅ Rainfall sufficient
Jul 4.3" 4.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 3.3" 1" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 4.2" 0.1" 💧 Light watering
Dec 4.5" 0" ❄️ Dormant

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

Hubbard 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.

Hubbard Squash needs ~2,008 GDD — county provides 4,252 GDD Excellent fit

Hubbard Squash Planting Timeline — Lexington County, SC

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors April 5 Apr 5 – Apr 19
Direct Sow March 29 Mar 29 – Apr 19
Harvest July 19 Jul 19 – Aug 23

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"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

233 days in Lexington County

Growing Tips for Hubbard Squash in Lexington County

Direct sow Hubbard Squash outdoors after March 22 in Lexington County when soil has warmed and frost danger has passed.

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

Common pests for Hubbard 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 in short-season areas. Requires ample space and rich soil. Harvest when the skin is very hard and the color is deep. Cure in the sun before storing.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hubbard Squash in Lexington County, SC?

Lexington County is in Zone 8a with an average last frost of March 22. Plan your Hubbard Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lexington County, SC?

Lexington County, South Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 10.

🌱

Your Lexington County Garden Planner — Free

A 24-page printable planner built for Lexington 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 Lexington County, SC. 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.