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When to Plant Mitsuba in Drew County, AR

Drew County, Arkansas Zone 8b May

May to-do list for Drew County, Arkansas

We've pulled the most time-sensitive tasks for Drew County, Arkansas this May and put them front and centre. Tackle them in order.

Avg. last frost March 18
Avg. first frost November 10
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Bring in the mitsuba

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Before June arrives, get these ready
  • First harvests: mitsuba

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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.

Drew County, Arkansas is in USDA Zone 8b. The average last spring frost is March 18 and the first fall frost is November 10, giving you a growing season of approximately 237 days.

At an elevation of 1,158 feet, Drew County receives approximately 54.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Mitsuba during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mitsuba root diseases.

Drew County, AR (Zone 8b) Long season
237 days
Last Spring Frost March 18
237 growing days
First Fall Frost November 10
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Drew County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (131 days to spare)
Start indoors: Feb 2 Transplant: Mar 2 🍅 Harvest: Apr 27 – Jun 22
Recommended (50%) ✓ Fits season (132 days to spare)
Start indoors: Feb 11 Transplant: Mar 11 🍅 Harvest: May 6 – Jul 1
Safe Start (90%) ✓ Fits season (130 days to spare)
Start indoors: Mar 4 Transplant: Apr 1 🍅 Harvest: May 27 – Jul 22

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 Drew County

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

Soil pH

Your soil pH (5.6–6.8) overlaps with Mitsuba's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Drew County is excellent for Mitsuba — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). 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 237-day season

Sow every 5.7 weeks. Last sowing by Sep 01 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 65 gal / 100 sq ft

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 4.8" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" ✅ Rainfall sufficient
Apr 4.3" 4.5" 0" ✅ Rainfall sufficient
May 4.3" 4.9" 0" ✅ Rainfall sufficient
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Drew County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,050 GDD — county provides 4,147 GDD Excellent fit

Mitsuba Planting Timeline — Drew County, AR

Mitsuba Planting Calendar

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 September 1 Sep 1 – Sep 15

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
September Fall Sowing
October
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Drew County

Growing Tips for Mitsuba in Drew County

Direct sow Mitsuba outdoors after March 18 in Drew County when soil has warmed and frost danger has passed.

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 Drew County, AR?

Drew County is in Zone 8b with an average last frost of March 18. Plan your Mitsuba planting based on this frost date — see the calendar above for exact timing.

What planting zone is Drew County, AR?

Drew County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 18 and first fall frost is November 10.

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Your Drew County Garden Planner — Free

A 24-page printable planner built for Drew County (Zone 8b). 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 Drew County, AR. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.