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When to plant Mitsuba in Cheyenne County, CO

Cheyenne County's climate puts the Mitsuba spring window between April 18 and May 9. time plantings around the expected last-frost window for best survival. A second sowing from August 2 to August 16 extends the harvest into fall.

When to Plant Mitsuba in Cheyenne County, CO

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.

Cheyenne County, Colorado is in USDA Zone 6a. The average last spring frost is May 2 and the first fall frost is October 11, giving you a growing season of approximately 162 days.

At an elevation of 7,824 feet, Cheyenne County receives approximately 21.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Mitsuba during the growing season.

Cheyenne County, CO (Zone 6a) Moderate season
162 days
Last Spring Frost May 2
162 growing days
First Fall Frost October 11

Cheyenne County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Mitsuba Planting Timeline — Cheyenne County, CO

Mitsuba Planting Calendar

Activity When Date Range
Start Indoors March 28 Mar 28 – Apr 11
Transplant Outdoors April 25 Apr 25 – May 9
Direct Sow April 18 Apr 18 – May 9
Harvest June 20 Jun 20 – Aug 15
Fall Sowing August 2 Aug 2 – Aug 16

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Fall Sowing Harvest
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 6a

📆 Growing Season

162 days in Cheyenne County

Growing Tips for Cheyenne 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 Cheyenne County, CO?

Cheyenne County is in Zone 6a with an average last frost of May 2. Plan your Mitsuba planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cheyenne County, CO?

Cheyenne County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 2 and first fall frost is October 11.

When should I plant Mitsuba in Cheyenne County, CO?

In Cheyenne County, CO, plant Mitsuba after the last frost (around May 2) and before the first frost (around October 11). Best results when soil holds above 50°F.

What growing zone is Cheyenne County, CO for Mitsuba?

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

Can Mitsuba grow in Cheyenne County's climate?

Yes — Mitsuba grows well in Cheyenne County's temperate climate. Cheyenne County averages a 162-day frost-free season, with last frost around May 2 and first frost around October 11.

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Your Cheyenne County Garden Planner — Free

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

Sources & credits

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