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When to Plant Pac Choi in New Madrid County, MO

New Madrid County, Missouri Zone 7b May

May to-do list for New Madrid County, Missouri

Here's what deserves your attention in New Madrid County, Missouri this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost March 30
Avg. first frost November 2
Soil temp (4") 63°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Start pac choi indoors

    Label every cell. You will absolutely forget which is which otherwise.

  2. Basket week: pac choi

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

Get ahead of June
  • First harvests: pac choi

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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.

New Madrid County, Missouri is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 2, giving you a growing season of approximately 217 days.

At an elevation of 881 feet, New Madrid County receives approximately 39.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Pac Choi during the growing season.

New Madrid County, MO (Zone 7b) Long season
217 days
Last Spring Frost March 30
217 growing days
First Fall Frost November 2
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New Madrid County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (148 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: May 4 – Jun 1
Recommended (50%) ✓ Fits season (147 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: May 11 – Jun 8
Safe Start (90%) ✓ Fits season (151 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: May 28 – Jun 25

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 New Madrid County

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

Soil pH

Your soil pH (5.7–6.8) overlaps with Pac Choi's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). 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

6
successive plantings in your 217-day season

Sow every 4.6 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Aug 24.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,424 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 1.8" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 6.5" 2.8" 3.7" 🚿 Regular watering
Apr 6.5" 4.2" 2.3" 💧 Light watering
May 6.5" 4.4" 2.1" 💧 Light watering
Jun 6.5" 4.9" 1.6" 💧 Light watering
Jul 6.5" 4.6" 1.9" 💧 Light watering
Aug 6.5" 4.4" 2.1" 💧 Light watering
Sep 6.5" 3.4" 3.1" 💧 Light watering
Oct 6.5" 2.8" 3.7" 🚿 Regular watering
Nov 6.5" 2.6" 3.9" 🚿 Regular watering
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in New Madrid 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 ~760 GDD — county provides 3,472 GDD Excellent fit

Pac Choi Planting Timeline — New Madrid County, MO

Pac Choi 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 11 May 11 – Jun 8
Fall Sowing August 24 Aug 24 – Sep 7

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 · 2-3 times/week

📅 Days to Maturity

40–55 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

217 days in New Madrid County

Growing Tips for Pac Choi in New Madrid County

Direct sow Pac Choi outdoors after March 30 in New Madrid County when soil has warmed and frost danger has passed.

Your generous 217.0-day season in New Madrid 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 New Madrid County, MO?

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

What planting zone is New Madrid County, MO?

New Madrid County, Missouri is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 2.

🌱

Your New Madrid County Garden Planner — Free

A 24-page printable planner built for New Madrid 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 New Madrid County, MO. 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.