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When to Plant Rutabaga in Fountain County, IN

Fountain County, Indiana Zone 6a May

Your May planting checklist for Fountain County, Indiana

A quick May briefing for Fountain County, Indiana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 16
Avg. first frost October 17
Soil temp (4") 58°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
June will be here before you know it — start on
  • First harvests: rutabaga

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Rutabagas are a cross between turnips and cabbage, producing large yellow-fleshed roots with a sweet, mild flavor. They are excellent mashed, roasted, or in stews.

Fountain 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 1,088 feet, Fountain County receives approximately 30.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Rutabaga during the growing season.

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

Fountain 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 (62 days to spare)
Transplant: Apr 13 🍅 Harvest: Jul 6 – Aug 10
Recommended (50%) ✓ Fits season (65 days to spare)
Transplant: Apr 16 🍅 Harvest: Jul 9 – Aug 13
Safe Start (90%) ✓ Fits season (59 days to spare)
Transplant: May 4 🍅 Harvest: Jul 27 – Aug 31

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 Fountain County

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

Soil pH

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

Soil Texture

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

Drainage

Drainage is adequate for Rutabaga.

Organic Matter

Organic matter is excellent (4.0%) — Rutabaga will thrive.

How to Plant Rutabaga

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 Rutabaga

2
successive plantings in your 184-day season

Sow every 9.1 weeks. Last sowing by Jul 09 to harvest before frost.

For a dedicated fall crop, sow by Aug 08.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.7″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 350 gal / 100 sq ft

Monthly Watering Guide for Rutabaga

Rutabaga needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Rutabaga Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 3" 2.6" 0.4" 💧 Light watering
May 3" 3.4" 0" ✅ Rainfall sufficient
Jun 3" 4.3" 0" ✅ Rainfall sufficient
Jul 3" 3" 0" ✅ Rainfall sufficient
Aug 3" 3.3" 0" ✅ Rainfall sufficient
Sep 3" 2.6" 0.4" 💧 Light watering
Oct 3" 2.6" 0.4" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

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

Rutabaga 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.

Rutabaga needs ~1,238 GDD — county provides 2,530 GDD Excellent fit

Rutabaga Planting Timeline — Fountain County, IN

Rutabaga Planting Calendar

Activity When Date Range
Direct Sow April 2 Apr 2 – Apr 23
Harvest June 25 Jun 25 – Jul 30
Fall Sowing August 8 Aug 8 – Aug 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Only during dry spells

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

184 days in Fountain County

Growing Tips for Rutabaga in Fountain County

Direct sow Rutabaga outdoors after April 16 in Fountain County when soil has warmed and frost danger has passed.

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

General growing tips

Direct sow in early summer for fall harvest. Thin seedlings to 6-8 inches apart. Flavor improves significantly after a few light frosts.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rutabaga in Fountain County, IN?

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

What planting zone is Fountain County, IN?

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

🌱

Your Fountain County Garden Planner — Free

A 24-page printable planner built for Fountain 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 Fountain County, IN. 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.