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When to Plant Cabbage in Colleton County, SC

Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.

Colleton County, South Carolina is in USDA Zone 8a. The average last spring frost is March 10 and the first fall frost is November 13, giving you a growing season of approximately 248 days.

At an elevation of 265 feet, Colleton County receives approximately 58.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Cabbage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Colleton County, SC (Zone 8a) Long season
248 days
Last Spring Frost March 10
248 growing days
First Fall Frost November 13

Colleton County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (139 days to spare)
Start indoors: Jan 17 Transplant: Feb 21 🍅 Harvest: Apr 25 – Jun 20
Recommended (50%) ✓ Fits season (129 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: May 12 – Jul 7
Safe Start (90%) ✓ Fits season (131 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jun 9 – Aug 4

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 Colleton County

How your county's soil matches Cabbage's growing requirements.

Soil pH

Your soil pH (4.9โ€“6.0) is more acidic than Cabbage prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cabbage.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Cabbage.

How to Plant Cabbage

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Cabbage

4
successive plantings in your 248-day season

Sow every 6.9 weeks. Last sowing by Aug 05 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

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

Monthly Watering Guide for Cabbage

Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Cabbage Needs Rainfall You Supplement Action
Jan โ€” 4.6" 0" โ„๏ธ Dormant
Feb โ€” 5.3" 0" โ„๏ธ Dormant
Mar 3.9" 6.2" 0" โœ… Rainfall sufficient
Apr 3.9" 4.2" 0" โœ… Rainfall sufficient
May 3.9" 4.5" 0" โœ… Rainfall sufficient
Jun 3.9" 5.8" 0" โœ… Rainfall sufficient
Jul 3.9" 5.7" 0" โœ… Rainfall sufficient
Aug 3.9" 5.5" 0" โœ… Rainfall sufficient
Sep 3.9" 4.1" 0" โœ… Rainfall sufficient
Oct 3.9" 3.4" 0.5" ๐Ÿ’ง Light watering
Nov 3.9" 4" 0" โœ… Rainfall sufficient
Dec โ€” 4.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Colleton County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Cabbage 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" โ€” every day above 50ยฐF 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.

Cabbage needs ~1,760 GDD — county provides 5,456 GDD Excellent fit

Cabbage Planting Timeline โ€” Colleton County, SC

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 โ€“ Feb 17
Transplant Outdoors March 10 Mar 10 โ€“ Mar 24
Direct Sow February 24 Feb 24 โ€“ Mar 17
Harvest May 12 May 12 โ€“ Jul 7
Fall Sowing September 4 Sep 4 โ€“ Sep 18

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

248 days in Colleton County

Growing Tips for Cabbage in Colleton County

Direct sow Cabbage outdoors after March 10 in Colleton County when soil has warmed and frost danger has passed.

Sandy soil in Colleton County dries quickly โ€” mulch Cabbage with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Colleton County reach 96ยฐF โ€” grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cabbage in Colleton County, SC?

Colleton County is in Zone 8a with an average last frost of March 10. Plan your Cabbage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Colleton County, SC?

Colleton County, South Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 10 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Colleton County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Colleton County, SC. Local conditions may vary. Last updated: April 2026.