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When to Plant Mitsuba in Wayne County, MS

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.

Wayne County, Mississippi is in USDA Zone 8a. The average last spring frost is March 16 and the first fall frost is November 13, giving you a growing season of approximately 242 days.

At an elevation of 153 feet, Wayne County receives approximately 54 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96ยฐF, so Mitsuba may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Mitsuba, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mitsuba root diseases.

Wayne County, MS (Zone 8a) Long season
242 days
Last Spring Frost March 16
242 growing days
First Fall Frost November 13

Wayne County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (136 days to spare)
Start indoors: Jan 30 Transplant: Feb 27 🍅 Harvest: Apr 24 – Jun 19
Recommended (50%) ✓ Fits season (137 days to spare)
Start indoors: Feb 9 Transplant: Mar 9 🍅 Harvest: May 4 – Jun 29
Safe Start (90%) ✓ Fits season (132 days to spare)
Start indoors: Mar 3 Transplant: Mar 31 🍅 Harvest: May 26 – Jul 21

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 Wayne County

How your county's soil matches Mitsuba's growing requirements.

Soil pH

Your soil pH (5.3โ€“6.2) is more acidic than Mitsuba prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Wayne County is excellent for Mitsuba โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Mitsuba.

How to Plant Mitsuba

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Mitsuba

5
successive plantings in your 242-day season

Sow every 5.7 weeks. Last sowing by Sep 04 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 162 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Mitsuba

Mitsuba needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Mitsuba Needs Rainfall You Supplement Action
Jan โ€” 3.9" 0" โ„๏ธ Dormant
Feb โ€” 4.8" 0" โ„๏ธ Dormant
Mar 4.3" 4.8" 0" โœ… Rainfall sufficient
Apr 4.3" 3.7" 0.6" ๐Ÿ’ง Light watering
May 4.3" 4" 0.3" ๐Ÿ’ง Light watering
Jun 4.3" 5.1" 0" โœ… Rainfall sufficient
Jul 4.3" 5.9" 0" โœ… Rainfall sufficient
Aug 4.3" 5.5" 0" โœ… Rainfall sufficient
Sep 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Oct 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Nov 4.3" 4.3" 0" โœ… Rainfall sufficient
Dec โ€” 4.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Wayne County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Mitsuba 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.

Mitsuba needs ~1,320 GDD — county provides 5,324 GDD Excellent fit

Mitsuba Planting Timeline โ€” Wayne County, MS

Mitsuba Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 โ€“ Feb 23
Transplant Outdoors March 9 Mar 9 โ€“ Mar 23
Direct Sow March 2 Mar 2 โ€“ Mar 23
Harvest May 4 May 4 โ€“ Jun 29
Fall Sowing September 4 Sep 4 โ€“ Sep 18

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

50โ€“70 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

242 days in Wayne County

Growing Tips for Mitsuba in Wayne County

Direct sow Mitsuba outdoors after March 16 in Wayne County when soil has warmed and frost danger has passed.

With Wayne County's clay soil (34% clay), work in 3-4 inches of compost before planting Mitsuba. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96ยฐF in Wayne County, provide afternoon shade for Mitsuba and water deeply in the morning.

Common pests for Mitsuba in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Wayne County, MS?

Wayne County is in Zone 8a with an average last frost of March 16. Plan your Mitsuba planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wayne County, MS?

Wayne County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 16 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

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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 Wayne County, MS. Local conditions may vary. Last updated: April 2026.