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When to Plant Mitsuba in USDA Zone 7b

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.

In Zone 7b, the average last spring frost is around March 18 and the first fall frost is around November 8, giving you a growing season of approximately 235 days.

Zone 7b Long season
235 days
Last Spring Frost March 18
235 growing days
First Fall Frost November 8

Mitsuba Planting Timeline — Zone 7b

Where Is USDA Zone 7b?

The map below highlights the states that contain Zone 7b. Click any state to see the Mitsuba planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Mitsuba Planting Calendar — Zone 7b

Activity When Date Range
Start Indoors February 11 Feb 11 – Feb 25
Transplant Outdoors March 11 Mar 11 – Mar 25
Direct Sow March 4 Mar 4 – Mar 25
Harvest May 6 May 6 – Jul 1
Fall Sowing August 30 Aug 30 – Sep 13

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

Month-by-Month Timeline

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

Free Zone 7b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 7b with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

Days to Maturity

50–70 days

Soil pH

6 – 7

Zone Temperature Range

5°F to 10°F average annual minimum

Growing Season

235 days (Zone 7b average)

Planting Specifications

Planting Depth0.5 inches
Plant Spacing8 inches apart
Row Spacing12 inches between rows

Succession Planting Mitsuba in Zone 7b

5
successive plantings in Zone 7b's ~235-day season

Sow every 5.7 weeks for continuous harvest throughout the season.

Growing Tips for Mitsuba in Zone 7b

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

Level Up Your Garden

Saving Mitsuba Seeds

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Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

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Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

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Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

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Frequently Asked Questions

When should I plant Mitsuba in Zone 7b?

In Zone 7b, plan your Mitsuba planting around the average last frost date of March 18. Start seeds indoors around February 11. Direct sow outdoors around March 4. Transplant seedlings around March 11.

Can Mitsuba grow in Zone 7b?

Yes, Mitsuba can grow well in Zone 7b, hardy in USDA zones 4a through 9b. Zone 7b has a growing season of approximately 235 days, which is sufficient for Mitsuba (50-70 days to maturity).

When can I harvest Mitsuba in Zone 7b?

In Zone 7b, expect to harvest Mitsuba from May 6 – July 1. Mitsuba takes 50-70 days from planting to harvest.

What is the last frost date for Zone 7b?

The average last spring frost in Zone 7b is around March 18, and the first fall frost is around November 8. This gives a growing season of approximately 235 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Mitsuba?

Good companion plants for Mitsuba include Lettuce, Spinach. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — organize your planting dates for Zone 7b, track your crops, and plan your garden season from seed to harvest.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: April 2026.