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When to Plant Chinese Cabbage in Lamar County, MS

Lamar County, Mississippi Zone 8b May

May in Lamar County, Mississippi — your action list

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 6
Avg. first frost November 21
Soil temp (4") 71°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Start harvesting chinese cabbage

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

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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.

Lamar County, Mississippi is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 21, giving you a growing season of approximately 260 days.

At an elevation of 62 feet, Lamar County receives approximately 51.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Chinese Cabbage during the growing season. 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.

Lamar County, MS (Zone 8b) Long season
260 days
Last Spring Frost March 6
260 growing days
First Fall Frost November 21
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Lamar County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (175 days to spare)
Start indoors: Jan 24 Transplant: Feb 28 🍅 Harvest: Apr 25 – May 23
Recommended (50%) ✓ Fits season (176 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: May 1 – May 29
Safe Start (90%) ✓ Fits season (172 days to spare)
Start indoors: Feb 19 Transplant: Mar 26 🍅 Harvest: May 21 – Jun 18

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 Lamar County

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

Soil pH

Your soil pH (5.8–6.4) overlaps with Chinese Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). 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

6
successive plantings in your 260-day season

Sow every 5.7 weeks. Last sowing by Sep 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 12.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,542 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 4.9" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 6.5" 4.9" 1.6" 💧 Light watering
Apr 6.5" 4.2" 2.3" 💧 Light watering
May 6.5" 3.5" 3" 💧 Light watering
Jun 6.5" 4.2" 2.3" 💧 Light watering
Jul 6.5" 6" 0.5" 💧 Light watering
Aug 6.5" 5.4" 1.1" 💧 Light watering
Sep 6.5" 4.2" 2.3" 💧 Light watering
Oct 6.5" 3.7" 2.8" 💧 Light watering
Nov 6.5" 3.4" 3.1" 💧 Light watering
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lamar 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 ~1,095 GDD — county provides 4,745 GDD Excellent fit

Chinese Cabbage Planting Timeline — Lamar County, MS

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors March 6 Mar 6 – Mar 20
Direct Sow February 20 Feb 20 – Mar 13
Harvest May 1 May 1 – May 29
Fall Sowing September 12 Sep 12 – Sep 26

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

260 days in Lamar County

Growing Tips for Chinese Cabbage in Lamar County

Direct sow Chinese Cabbage outdoors after March 06 in Lamar County when soil has warmed and frost danger has passed.

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

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 Lamar County, MS?

Lamar County is in Zone 8b with an average last frost of March 6. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lamar County, MS?

Lamar County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 21.

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Your Lamar County Garden Planner — Free

A 24-page printable planner built for Lamar 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 Lamar County, MS. 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.