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When to Plant Pac Choi in Menard County, IL

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.

Menard County, Illinois is in USDA Zone 5b. The average last spring frost is April 15 and the first fall frost is October 19, giving you a growing season of approximately 187 days.

At an elevation of 934 feet, Menard County receives approximately 37 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84ยฐF, so choose short-season varieties of Pac Choi to ensure they mature before fall.

Menard County, IL (Zone 5b) Moderate season
187 days
Last Spring Frost April 15
187 growing days
First Fall Frost October 19

Menard County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (115 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: May 21 – Jun 18
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: May 27 – Jun 24
Safe Start (90%) ✓ Fits season (114 days to spare)
Start indoors: Mar 26 Transplant: Apr 30 🍅 Harvest: Jun 11 – Jul 9

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.

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 1,113 gal / 100 sq ft
Pac Choi needs ~618 GDD — county provides 2,431 GDD Excellent fit

Pac Choi Planting Timeline โ€” Menard County, IL

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors March 11 Mar 11 โ€“ Mar 25
Transplant Outdoors April 15 Apr 15 โ€“ Apr 29
Direct Sow April 1 Apr 1 โ€“ Apr 22
Fall Sowing August 10 Aug 10 โ€“ Aug 24
Harvest May 27 May 27 โ€“ Jun 24

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

40โ€“55 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5b

Growing Season

187 days

Growing Tips for Menard County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Pac Choi in Menard County, IL?

Menard County is in Zone 5b with an average last frost of April 15. Plan your Pac Choi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Menard County, IL?

Menard County, Illinois is in USDA Hardiness Zone 5b. The average last spring frost is April 15 and first fall frost is October 19.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Menard County gardeners in Zone 5b 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 Menard County, IL. Local conditions may vary. Last updated: April 2026.