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When to Plant Chinese Cabbage in Richland County, SC

Richland County, South Carolina Zone 8b May

This month in Richland County, South Carolina

Here's what deserves your attention in Richland County, South Carolina this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 22
Avg. first frost November 10
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Pick 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.

Richland County, South Carolina is in USDA Zone 8b. 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 88 feet, Richland County receives approximately 57.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Chinese Cabbage may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Chinese Cabbage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chinese Cabbage root diseases.

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

Richland County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (146 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: May 12 – Jun 9
Recommended (50%) ✓ Fits season (149 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: May 17 – Jun 14
Safe Start (90%) ✓ Fits season (142 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 10 – Jul 8

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 Richland County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Chinese Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Chinese Cabbage.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Chinese Cabbage.

How to Plant Chinese 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 Chinese Cabbage

5
successive plantings in your 233-day season

Sow every 5.7 weeks. Last sowing by Sep 01 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 17 gal / 100 sq ft

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 5.4" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 6.5" 4.7" 1.8" 💧 Light watering
Apr 6.5" 4.8" 1.7" 💧 Light watering
May 6.5" 3.9" 2.6" 💧 Light watering
Jun 6.5" 5.6" 0.9" 💧 Light watering
Jul 6.5" 6.5" 0" ✅ Rainfall sufficient
Aug 6.5" 5.2" 1.3" 💧 Light watering
Sep 6.5" 4.5" 2" 💧 Light watering
Oct 6.5" 3.7" 2.8" 💧 Light watering
Nov 6.5" 4.3" 2.2" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Richland 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 ~1,365 GDD — county provides 5,300 GDD Excellent fit

Chinese Cabbage Planting Timeline — Richland County, SC

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 8 Mar 8 – Mar 29
Harvest May 17 May 17 – Jun 14
Fall Sowing September 1 Sep 1 – Sep 15

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
May Harvest
June Harvest
July
August
September Fall Sowing
October
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: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

233 days in Richland County

Growing Tips for Chinese Cabbage in Richland County

Direct sow Chinese Cabbage outdoors after March 22 in Richland County when soil has warmed and frost danger has passed.

With Richland County's clay soil (32% clay), work in 3-4 inches of compost before planting Chinese Cabbage. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Richland County, provide afternoon shade for Chinese Cabbage and water deeply in the morning.

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 Richland County, SC?

Richland County is in Zone 8b with an average last frost of March 22. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Richland County, SC?

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

🌱

Your Richland County Garden Planner — Free

A 24-page printable planner built for Richland County (Zone 8b). 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 Richland 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.