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When to Plant Cabbage in Harnett County, NC

Harnett County, North Carolina Zone 7b April

April to-do list for Harnett County, North Carolina

Your Harnett County, North Carolina garden is entering a new phase. Here's what's on the schedule for April and why each task matters now.

Avg. last frost March 29
Avg. first frost November 6
Soil temp (4") 59°F
Watering Low
Pest pressure Moderate
Daylight 12.9 hrs
Get ahead of May
  • Starting indoors: cabbage
  • First harvests: cabbage

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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.

Harnett County, North Carolina is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 6, giving you a growing season of approximately 222 days.

At an elevation of 613 feet, Harnett County receives approximately 53.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88°F, providing good warmth for Cabbage during the growing season. Clay soil retains moisture well for Cabbage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Harnett County, NC (Zone 7b) Long season
222 days
Last Spring Frost March 29
222 growing days
First Fall Frost November 6
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Harnett County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: May 25 – Jul 20
Recommended (50%) ✓ Fits season (103 days to spare)
Start indoors: Feb 22 Transplant: Mar 29 🍅 Harvest: May 31 – Jul 26
Safe Start (90%) ✓ Fits season (95 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: Jun 19 – Aug 14

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 Harnett County

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

Soil pH

Your soil pH (5.5–6.6) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Cabbage.

Organic Matter

Organic matter is moderate (2.8%). 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 222-day season

Sow every 6.9 weeks. Last sowing by Jul 29 to harvest before frost.

For a dedicated fall crop, sow by Aug 28.

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 4.6" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 3.9" 5" 0" ✅ Rainfall sufficient
Apr 3.9" 4.6" 0" ✅ Rainfall sufficient
May 3.9" 4.5" 0" ✅ Rainfall sufficient
Jun 3.9" 4.3" 0" ✅ Rainfall sufficient
Jul 3.9" 5" 0" ✅ Rainfall sufficient
Aug 3.9" 4.8" 0" ✅ Rainfall sufficient
Sep 3.9" 4.1" 0" ✅ Rainfall sufficient
Oct 3.9" 3.8" 0.1" 💧 Light watering
Nov 3.9" 4.4" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Harnett County). Supplement amounts are based on average rainfall — 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" — 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.

Cabbage needs ~1,280 GDD — county provides 3,552 GDD Excellent fit

Cabbage Planting Timeline — Harnett County, NC

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors March 29 Mar 29 – Apr 12
Direct Sow March 15 Mar 15 – Apr 5
Harvest May 31 May 31 – Jul 26
Fall Sowing August 28 Aug 28 – Sep 11

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

222 days in Harnett County

Growing Tips for Cabbage in Harnett County

Direct sow Cabbage outdoors after March 29 in Harnett County when soil has warmed and frost danger has passed.

With Harnett County's clay soil (27% clay), work in 3-4 inches of compost before planting Cabbage. Avoid tilling when soil is wet to prevent compaction.

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 Harnett County, NC?

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

What planting zone is Harnett County, NC?

Harnett County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 6.

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Your Harnett County Garden Planner — Free

A 24-page printable planner built for Harnett County (Zone 7b). 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 Harnett County, NC. 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.