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When to Plant Pac Choi in Walthall County, MS

Walthall County, Mississippi Zone 8b May

Your May planting checklist for Walthall County, Mississippi

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

Avg. last frost March 15
Avg. first frost November 16
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Harvest pac choi as they ripen

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

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Pac choi (baby bok choy) is a compact variety of Chinese cabbage with tender leaves and crisp stems. It grows quickly and is ideal for containers and small spaces.

Walthall County, Mississippi is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 16, giving you a growing season of approximately 246 days.

At an elevation of 207 feet, Walthall County receives approximately 50.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Pac Choi during the growing season. Clay soil retains moisture well for Pac Choi, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Pac Choi root diseases.

Walthall County, MS (Zone 8b) Long season
246 days
Last Spring Frost March 15
246 growing days
First Fall Frost November 16

Walthall 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 (182 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: Apr 15 – May 13
Recommended (50%) ✓ Fits season (176 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: Apr 26 – May 24
Safe Start (90%) ✓ Fits season (169 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: May 18 – Jun 15

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 Walthall County

How your county's soil matches Pac Choi's growing requirements.

Soil pH

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

Soil Texture

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

Drainage

Drainage is adequate for Pac Choi.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Pac Choi.

How to Plant Pac Choi

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 Pac Choi

7
successive plantings in your 246-day season

Sow every 4.6 weeks. Last sowing by Sep 22 to harvest before frost.

For a dedicated fall crop, sow by Sep 07.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 422 gal / 100 sq ft

Monthly Watering Guide for Pac Choi

Pac Choi 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 Pac Choi Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 6.5" 4.5" 2" 💧 Light watering
Apr 6.5" 4.4" 2.1" 💧 Light watering
May 6.5" 4" 2.5" 💧 Light watering
Jun 6.5" 4" 2.5" 💧 Light watering
Jul 6.5" 5.9" 0.6" 💧 Light watering
Aug 6.5" 4.2" 2.3" 💧 Light watering
Sep 6.5" 3.5" 3" 💧 Light watering
Oct 6.5" 3.6" 2.9" 💧 Light watering
Nov 6.5" 3.4" 3.1" 💧 Light watering
Dec 4" 0" ❄️ Dormant

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

Pac Choi 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.

Pac Choi needs ~831 GDD — county provides 4,305 GDD Excellent fit

Pac Choi Planting Timeline — Walthall County, MS

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 15 Mar 15 – Mar 29
Direct Sow March 1 Mar 1 – Mar 22
Harvest April 26 Apr 26 – May 24
Fall Sowing September 7 Sep 7 – Sep 21

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June
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

40–55 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

246 days in Walthall County

Growing Tips for Pac Choi in Walthall County

Direct sow Pac Choi outdoors after March 15 in Walthall County when soil has warmed and frost danger has passed.

With Walthall County's clay soil (34% clay), work in 3-4 inches of compost before planting Pac Choi. Avoid tilling when soil is wet to prevent compaction.

Your generous 246.0-day season in Walthall County allows multiple plantings of Pac Choi. Sow every 20.0 days for continuous harvest.

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

General growing tips

Direct sow in spring or fall. Grows best in cool weather. Space 6 inches apart for baby pac choi. Harvest whole plants or cut outer leaves as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pac Choi in Walthall County, MS?

Walthall County is in Zone 8b with an average last frost of March 15. Plan your Pac Choi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walthall County, MS?

Walthall County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 16.

🌱

Your Walthall County Garden Planner — Free

A 24-page printable planner built for Walthall 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 Walthall 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.