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When to Plant Napa Cabbage in Tishomingo County, MS

Tishomingo County, Mississippi Zone 7b May

What to do in May

Your garden in Tishomingo County, Mississippi is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 30
Avg. first frost October 29
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
  1. Fire up the seed-starting tray: napa cabbage

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. It's harvest week for napa cabbage

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

June prep starts now
  • First harvests: napa cabbage

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Napa cabbage forms tall, barrel-shaped heads with tender, crinkled leaves and a mild, slightly sweet flavor. It is the primary cabbage used for kimchi.

Tishomingo County, Mississippi is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 29, giving you a growing season of approximately 213 days.

At an elevation of 101 feet, Tishomingo County receives approximately 56.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Napa Cabbage during the growing season. Clay soil retains moisture well for Napa Cabbage, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Napa Cabbage root diseases.

Tishomingo County, MS (Zone 7b) Long season
213 days
Last Spring Frost March 30
213 growing days
First Fall Frost October 29
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Tishomingo County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: May 17 – Jun 21
Recommended (50%) ✓ Fits season (122 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: May 25 – Jun 29
Safe Start (90%) ✓ Fits season (128 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 11 – Jul 16

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 Tishomingo County

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

Soil pH

Your soil pH (5.2–6.5) is more acidic than Napa Cabbage prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Napa 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 Napa Cabbage

4
successive plantings in your 213-day season

Sow every 6.3 weeks. Last sowing by Aug 15 to harvest before frost.

For a dedicated fall crop, sow by Aug 20.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 717 gal / 100 sq ft

Monthly Watering Guide for Napa Cabbage

Napa 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 Napa Cabbage Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 6.5" 5.2" 1.3" 💧 Light watering
Apr 6.5" 3.8" 2.7" 💧 Light watering
May 6.5" 4.9" 1.6" 💧 Light watering
Jun 6.5" 5.4" 1.1" 💧 Light watering
Jul 6.5" 5.8" 0.7" 💧 Light watering
Aug 6.5" 5.5" 1" 💧 Light watering
Sep 6.5" 4" 2.5" 💧 Light watering
Oct 6.5" 3.9" 2.6" 💧 Light watering
Nov 4.7" 0" ❄️ Dormant
Dec 4.6" 0" ❄️ Dormant

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

Napa 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.

Napa Cabbage needs ~1,138 GDD — county provides 3,727 GDD Excellent fit

Napa Cabbage Planting Timeline — Tishomingo County, MS

Napa Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 – Mar 9
Transplant Outdoors March 30 Mar 30 – Apr 13
Direct Sow March 16 Mar 16 – Apr 6
Harvest May 25 May 25 – Jun 29
Fall Sowing August 20 Aug 20 – Sep 3

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
August Fall Sowing
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

55–75 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7b

📆 Growing Season

213 days in Tishomingo County

Growing Tips for Napa Cabbage in Tishomingo County

Direct sow Napa Cabbage outdoors after March 30 in Tishomingo County when soil has warmed and frost danger has passed.

With Tishomingo County's clay soil (29% clay), work in 3-4 inches of compost before planting Napa Cabbage. Avoid tilling when soil is wet to prevent compaction.

Common pests for Napa 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. Direct sow in late summer, 60-70 days before first frost. Keep soil evenly moist. Bolt-resistant varieties are available for spring planting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Napa Cabbage in Tishomingo County, MS?

Tishomingo County is in Zone 7b with an average last frost of March 30. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Tishomingo County, MS?

Tishomingo County, Mississippi is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is October 29.

🌱

Your Tishomingo County Garden Planner — Free

A 24-page printable planner built for Tishomingo 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 Tishomingo 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.