Blog

When to plant Mitsuba in Worth County, GA

For Mitsuba in Worth County, the safe spring window opens around February 14 and closes around March 7. Last expected frost is March 7, first fall frost November 18, giving a 256-day growing season. A second sowing from September 23 to October 7 extends the harvest into fall.

When to Plant Mitsuba in Worth County, GA

Worth County, Georgia Zone 9a June

Your June planting checklist for Worth County, Georgia

Each item below is timed to Worth County, Georgia's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 7
Avg. first frost November 18
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Basket week: mitsuba

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

Instant PDF download. No spam, unsubscribe any time.

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.

Worth County, Georgia is in USDA Zone 9a. The average last spring frost is March 7 and the first fall frost is November 18, giving you a growing season of approximately 256 days.

At an elevation of 190 feet, Worth County receives approximately 58.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, 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.

Worth County, GA (Zone 9a) Long season
256 days
Last Spring Frost March 7
256 growing days
First Fall Frost November 18

Worth County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Mitsuba Planting Risk Windows

Early Start (70% safe) ✓ Fits season (151 days to spare)
Start indoors: Jan 31 Transplant: Feb 21 🍅 Harvest: Apr 18 – Jun 13
Recommended (50%) ✓ Fits season (151 days to spare)
Start indoors: Feb 7 Transplant: Feb 28 🍅 Harvest: Apr 25 – Jun 20
Safe Start (90%) ✓ Fits season (147 days to spare)
Start indoors: Feb 26 Transplant: Mar 19 🍅 Harvest: May 14 – Jul 9

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 Worth County

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

Soil pH

Your soil pH (5.5–6.5) overlaps with Mitsuba's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Mitsuba.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Mitsuba.

How to Plant Mitsuba

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Mitsuba

6
successive plantings in your 256-day season

Sow every 5.7 weeks. Last sowing by Sep 09 to harvest before frost.

For a dedicated fall crop, sow by Sep 23.

Mitsuba Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 4.7" 0" ❄️ Dormant
Feb 5.1" 0" ❄️ Dormant
Mar 4.3" 5.6" 0" ✅ Rainfall sufficient
Apr 4.3" 5" 0" ✅ Rainfall sufficient
May 4.3" 4.3" 0" ✅ Rainfall sufficient
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 6.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 4.8" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 4.3" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Worth 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 ~1,365 GDD — county provides 5,824 GDD Excellent fit

Mitsuba Planting Timeline — Worth County, GA

Mitsuba Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow February 14 Feb 14 – Mar 7
Harvest April 25 Apr 25 – Jun 20
Fall Sowing September 23 Sep 23 – Oct 7

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

256 days in Worth County

Growing Tips for Mitsuba in Worth County

Direct sow Mitsuba outdoors after March 07 in Worth County when soil has warmed and frost danger has passed.

With Worth 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 97°F in Worth 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 Worth County, GA?

Worth County is in Zone 9a with an average last frost of March 7. Plan your Mitsuba planting based on this frost date — see the calendar above for exact timing.

What planting zone is Worth County, GA?

Worth County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 7 and first fall frost is November 18.

When should I plant Mitsuba in Worth County, GA?

In Worth County, GA, plant Mitsuba after the last frost (around March 7) and before the first frost (around November 18). Best results when soil holds above 50°F.

What growing zone is Worth County, GA for Mitsuba?

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

Can Mitsuba grow in Worth County's climate?

Yes — Mitsuba grows well in Worth County's temperate climate. Worth County averages a 256-day frost-free season, with last frost around March 7 and first frost around November 18.

🌱

Your Worth County Garden Planner — Free

A 22-page printable planner built for Worth County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Worth County, GA. Local conditions may vary. Last updated: June 2026.

Sources & credits

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