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When to plant Mitsuba in Montgomery County, IL

Aim to plant Mitsuba in Montgomery County on or after March 30; the window stays open through April 20. Montgomery County's 191-day frost-free season gives you enough for a full main crop and a short fall succession. A second sowing from August 12 to August 26 extends the harvest into fall.

When to Plant Mitsuba in Montgomery County, IL

Mitsuba (Japanese parsley) is a shade-loving herb with trefoil leaves and a mild celery-parsley flavor. It is essential in Japanese cuisine for soups, salads, and garnishes.

Montgomery County, Illinois is in USDA Zone 6b. The average last spring frost is April 13 and the first fall frost is October 21, giving you a growing season of approximately 191 days.

At an elevation of 1,331 feet, Montgomery County receives approximately 30.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Mitsuba during the growing season.

Montgomery County, IL (Zone 6b) Moderate season
191 days
Last Spring Frost April 13
191 growing days
First Fall Frost October 21

Montgomery County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Mitsuba Planting Timeline — Montgomery County, IL

Mitsuba Planting Calendar

Activity When Date Range
Start Indoors March 9 Mar 9 – Mar 23
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow March 30 Mar 30 – Apr 20
Harvest June 1 Jun 1 – Jul 27
Fall Sowing August 12 Aug 12 – Aug 26

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

191 days in Montgomery County

Growing Tips for Montgomery County

Direct sow or start indoors in partial shade. Mitsuba prefers cool, moist conditions. Harvest outer stems as needed. Self-sows readily in shaded garden areas.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mitsuba in Montgomery County, IL?

Montgomery County is in Zone 6b with an average last frost of April 13. Plan your Mitsuba planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montgomery County, IL?

Montgomery County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 13 and first fall frost is October 21.

When should I plant Mitsuba in Montgomery County, IL?

In Montgomery County, IL, plant Mitsuba after the last frost (around April 13) and before the first frost (around October 21). Best results when soil holds above 50°F.

What growing zone is Montgomery County, IL for Mitsuba?

Montgomery County sits in USDA Zone 6b. Mitsuba grows reliably in zones 4a through 9b, so it's a good fit here.

Can Mitsuba grow in Montgomery County's climate?

Yes — Mitsuba grows well in Montgomery County's temperate climate. Montgomery County averages a 191-day frost-free season, with last frost around April 13 and first frost around October 21.

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Your Montgomery County Garden Planner — Free

A 22-page printable planner built for Montgomery County (Zone 6b). 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 Montgomery County, IL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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