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When to Plant Pac Choi in Lamar County, MS

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.

Lamar County, Mississippi is in USDA Zone 8a. 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 91ยฐF, 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.

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

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 (189 days to spare)
Start indoors: Jan 24 Transplant: Feb 28 🍅 Harvest: Apr 11 – May 9
Recommended (50%) ✓ Fits season (190 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: Apr 17 – May 15
Safe Start (90%) ✓ Fits season (186 days to spare)
Start indoors: Feb 19 Transplant: Mar 26 🍅 Harvest: May 7 – Jun 4

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 Pac Choi's growing requirements.

Soil pH

Your soil pH (5.8โ€“6.4) overlaps with Pac Choi's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The clay loam soil in Lamar County is excellent for Pac Choi โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). 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 260-day season

Sow every 4.6 weeks. Last sowing by Sep 27 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 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 โ€” 4.9" 0" โ„๏ธ Dormant
Feb โ€” 3.7" 0" โ„๏ธ Dormant
Mar 6.5" 4.9" 1.6" ๐Ÿ’ง Light watering
Apr 6.5" 4.2" 2.3" ๐Ÿ’ง Light watering
May 6.5" 3.5" 3" ๐Ÿ’ง Light watering
Jun 6.5" 4.2" 2.3" ๐Ÿ’ง Light watering
Jul 6.5" 6" 0.5" ๐Ÿ’ง Light watering
Aug 6.5" 5.4" 1.1" ๐Ÿ’ง Light watering
Sep 6.5" 4.2" 2.3" ๐Ÿ’ง Light watering
Oct 6.5" 3.7" 2.8" ๐Ÿ’ง Light watering
Nov 6.5" 3.4" 3.1" ๐Ÿ’ง Light watering
Dec โ€” 3.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Lamar County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~867 GDD — county provides 4,745 GDD Excellent fit

Pac Choi Planting Timeline โ€” Lamar County, MS

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 โ€“ Feb 13
Transplant Outdoors March 6 Mar 6 โ€“ Mar 20
Direct Sow February 20 Feb 20 โ€“ Mar 13
Harvest April 17 Apr 17 โ€“ May 15
Fall Sowing September 12 Sep 12 โ€“ Sep 26

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1.5"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

40โ€“55 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

260 days in Lamar County

Growing Tips for Pac Choi in Lamar County

Direct sow Pac Choi 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 Pac Choi. Avoid tilling when soil is wet to prevent compaction.

Your generous 260.0-day season in Lamar 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 Lamar County, MS?

Lamar County is in Zone 8a with an average last frost of March 6. Plan your Pac Choi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lamar County, MS?

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

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lamar County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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: April 2026.