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When to Plant Chinese Cabbage in Beaufort County, SC

Beaufort County, South Carolina Zone 9a May

May in Beaufort County, South Carolina — your action list

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Avg. last frost March 13
Avg. first frost November 15
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. It's harvest week for chinese cabbage

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Looking ahead to June
  • First harvests: chinese cabbage

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Chinese cabbage (Napa cabbage) forms elongated, barrel-shaped heads with tender, mild-flavored leaves. It is a staple in Asian cooking, particularly for kimchi.

Beaufort County, South Carolina is in USDA Zone 9a. The average last spring frost is March 13 and the first fall frost is November 15, giving you a growing season of approximately 247 days.

At an elevation of 288 feet, Beaufort County receives approximately 56.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Chinese Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Chinese Cabbage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chinese Cabbage root diseases.

Beaufort County, SC (Zone 9a) Long season
247 days
Last Spring Frost March 13
247 growing days
First Fall Frost November 15

Beaufort County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (163 days to spare)
Start indoors: Feb 4 Transplant: Mar 4 🍅 Harvest: Apr 29 – May 27
Recommended (50%) ✓ Fits season (163 days to spare)
Start indoors: Feb 13 Transplant: Mar 13 🍅 Harvest: May 8 – Jun 5
Safe Start (90%) ✓ Fits season (156 days to spare)
Start indoors: Mar 12 Transplant: Apr 9 🍅 Harvest: Jun 4 – Jul 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 Beaufort County

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

Soil pH

Your soil pH (4.9–6.1) is more acidic than Chinese Cabbage prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Chinese Cabbage.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Chinese Cabbage.

How to Plant Chinese Cabbage

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Chinese Cabbage

5
successive plantings in your 247-day season

Sow every 5.7 weeks. Last sowing by Sep 06 to harvest before frost.

For a dedicated fall crop, sow by Sep 20.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 235 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Chinese Cabbage

Chinese Cabbage needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Chinese Cabbage Needs Rainfall You Supplement Action
Jan 4.6" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 6.5" 5" 1.5" 💧 Light watering
Apr 6.5" 4.6" 1.9" 💧 Light watering
May 6.5" 5" 1.5" 💧 Light watering
Jun 6.5" 4.9" 1.6" 💧 Light watering
Jul 6.5" 5.3" 1.2" 💧 Light watering
Aug 6.5" 5.4" 1.1" 💧 Light watering
Sep 6.5" 4.8" 1.7" 💧 Light watering
Oct 6.5" 4.1" 2.4" 💧 Light watering
Nov 6.5" 4" 2.5" 💧 Light watering
Dec 4" 0" ❄️ Dormant

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

Chinese 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.

Chinese Cabbage needs ~1,275 GDD — county provides 5,248 GDD Excellent fit

Chinese Cabbage Planting Timeline — Beaufort County, SC

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 13 Mar 13 – Mar 27
Direct Sow February 20 Feb 20 – Mar 13
Harvest May 8 May 8 – Jun 5
Fall Sowing September 20 Sep 20 – Oct 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

247 days in Beaufort County

Growing Tips for Chinese Cabbage in Beaufort County

Direct sow Chinese Cabbage outdoors after March 13 in Beaufort County when soil has warmed and frost danger has passed.

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

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

General growing tips

Best grown as a fall crop to avoid bolting. Start seeds indoors or direct sow in late summer. Keep soil consistently moist and provide shade in warm weather.

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 Chinese Cabbage in Beaufort County, SC?

Beaufort County is in Zone 9a with an average last frost of March 13. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Beaufort County, SC?

Beaufort County, South Carolina is in USDA Hardiness Zone 9a. The average last spring frost is March 13 and first fall frost is November 15.

🌱

Your Beaufort County Garden Planner — Free

A 24-page printable planner built for Beaufort County (Zone 9a). 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 Beaufort County, SC. Local conditions may vary. Last updated: May 2026.

Sources & credits

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