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When to Plant Napa Cabbage in Parke County, IN

Parke County, Indiana Zone 6a April

Top priorities for Parke County, Indiana gardeners in April

Welcome to April in Zone 6a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 16
Avg. first frost October 17
Soil temp (4") 50°F
Watering High
Pest pressure Low
Daylight 13.1 hrs
  1. Set out napa cabbage seedlings

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

  2. Direct-sow napa cabbage

    Mark the row. Birds and stray feet both have opinions about unmarked beds.

A few tasks this April that'll pay off in May
  • Starting indoors: napa cabbage

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Napa cabbage forms tall, barrel-shaped heads with tender, crinkled leaves and a mild, slightly sweet flavor. It is the primary cabbage used for kimchi.

Parke County, Indiana is in USDA Zone 6a. The average last spring frost is April 16 and the first fall frost is October 17, giving you a growing season of approximately 184 days.

At an elevation of 847 feet, Parke County receives approximately 30.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Napa Cabbage during the growing season.

Parke County, IN (Zone 6a) Moderate season
184 days
Last Spring Frost April 16
184 growing days
First Fall Frost October 17
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Parke County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: Jun 8 – Jul 13
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 11 – Jul 16
Safe Start (90%) ✓ Fits season (87 days to spare)
Start indoors: Mar 30 Transplant: May 4 🍅 Harvest: Jun 29 – Aug 3

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 Parke County

How your county's soil matches Napa Cabbage's growing requirements.

Soil pH

Your soil pH (6.1–7.2) is within Napa Cabbage's preferred range (6.0–7.5).

Soil Texture

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

Drainage

Napa Cabbage is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is excellent (4.5%) — Napa Cabbage will thrive.

How to Plant Napa Cabbage

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Napa Cabbage

3
successive plantings in your 184-day season

Sow every 6.3 weeks. Last sowing by Aug 03 to harvest before frost.

For a dedicated fall crop, sow by Aug 08.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.7″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 2,049 gal / 100 sq ft

Monthly Watering Guide for Napa Cabbage

Napa Cabbage needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Napa Cabbage Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 6.5" 2.4" 4.1" 🚿 Regular watering
May 6.5" 3.4" 3.1" 💧 Light watering
Jun 6.5" 3.9" 2.6" 💧 Light watering
Jul 6.5" 3.7" 2.8" 💧 Light watering
Aug 6.5" 3.3" 3.2" 💧 Light watering
Sep 6.5" 2.7" 3.8" 🚿 Regular watering
Oct 6.5" 2.5" 4" 🚿 Regular watering
Nov 2.1" 0" ❄️ Dormant
Dec 1.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Parke County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Napa Cabbage 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.

Napa Cabbage needs ~894 GDD — county provides 2,530 GDD Excellent fit

Napa Cabbage Planting Timeline — Parke County, IN

Napa Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 – Mar 26
Transplant Outdoors April 16 Apr 16 – Apr 30
Direct Sow April 2 Apr 2 – Apr 23
Harvest June 11 Jun 11 – Jul 16
Fall Sowing August 8 Aug 8 – Aug 22

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

184 days in Parke County

Growing Tips for Napa Cabbage in Parke County

Direct sow Napa Cabbage outdoors after April 16 in Parke County when soil has warmed and frost danger has passed.

Common pests for Napa Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Best grown as a fall crop. Direct sow in late summer, 60-70 days before first frost. Keep soil evenly moist. Bolt-resistant varieties are available for spring planting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Napa Cabbage in Parke County, IN?

Parke County is in Zone 6a with an average last frost of April 16. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Parke County, IN?

Parke County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 16 and first fall frost is October 17.

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Your Parke County Garden Planner — Free

A 24-page printable planner built for Parke 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 Parke County, IN. Local conditions may vary. Last updated: April 2026.

Sources & credits

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