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When to Plant Pac Choi in Auglaize County, OH

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.

Auglaize County, Ohio is in USDA Zone 5b. The average last spring frost is April 25 and the first fall frost is October 21, giving you a growing season of approximately 179 days.

At an elevation of 691 feet, Auglaize County receives approximately 31.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Pac Choi to ensure they mature before fall.

Auglaize County, OH (Zone 5b) Moderate season
179 days
Last Spring Frost April 25
179 growing days
First Fall Frost October 21

Auglaize County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (112 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: May 29 – Jun 26
Recommended (50%) ✓ Fits season (109 days to spare)
Start indoors: Mar 21 Transplant: Apr 25 🍅 Harvest: Jun 6 – Jul 4
Safe Start (90%) ✓ Fits season (106 days to spare)
Start indoors: Apr 3 Transplant: May 8 🍅 Harvest: Jun 19 – Jul 17

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 Auglaize County

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

Soil pH

Your soil pH (6.2โ€“7.3) is within Pac Choi's preferred range (6.0โ€“7.5).

Soil Texture

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

Organic Matter

Organic matter is excellent (5.1%) โ€” Pac Choi will thrive.

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

5
successive plantings in your 179-day season

Sow every 4.6 weeks. Last sowing by Aug 27 to harvest before frost.

For a dedicated fall crop, sow by Aug 12.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,201 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€” 1.4" 0" โ„๏ธ Dormant
Feb โ€” 1.2" 0" โ„๏ธ Dormant
Mar โ€” 2.2" 0" โ„๏ธ Dormant
Apr 6.5" 3.4" 3.1" ๐Ÿ’ง Light watering
May 6.5" 3.1" 3.4" ๐Ÿšฟ Regular watering
Jun 6.5" 4" 2.5" ๐Ÿ’ง Light watering
Jul 6.5" 3.7" 2.8" ๐Ÿ’ง Light watering
Aug 6.5" 3.3" 3.2" ๐Ÿ’ง Light watering
Sep 6.5" 2.9" 3.6" ๐Ÿšฟ Regular watering
Oct 6.5" 2.7" 3.8" ๐Ÿšฟ Regular watering
Nov โ€” 1.9" 0" โ„๏ธ Dormant
Dec โ€” 1.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Auglaize 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 ~582 GDD — county provides 2,192 GDD Excellent fit

Pac Choi Planting Timeline โ€” Auglaize County, OH

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors March 21 Mar 21 โ€“ Apr 4
Transplant Outdoors April 25 Apr 25 โ€“ May 9
Direct Sow April 11 Apr 11 โ€“ May 2
Harvest June 6 Jun 6 โ€“ Jul 4
Fall Sowing August 12 Aug 12 โ€“ Aug 26

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1.5"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

40โ€“55 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 5b

๐Ÿ“† Growing Season

179 days in Auglaize County

Growing Tips for Pac Choi in Auglaize County

Direct sow Pac Choi outdoors after April 25 in Auglaize County when soil has warmed and frost danger has passed.

Your generous 179.0-day season in Auglaize 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 Auglaize County, OH?

Auglaize County is in Zone 5b with an average last frost of April 25. Plan your Pac Choi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Auglaize County, OH?

Auglaize County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 25 and first fall frost is October 21.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Auglaize County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Auglaize County, OH. Local conditions may vary. Last updated: April 2026.