Blog

When to Plant Escarole in Vanderburgh County, IN

Vanderburgh County, Indiana Zone 7a May

Top priorities for Vanderburgh County, Indiana gardeners in May

Welcome to May in Zone 7a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 7
Avg. first frost October 29
Soil temp (4") 64°F
Watering Low
Pest pressure Low
Daylight 14.1 hrs
  1. Indoor seed-starting week for escarole

    Your window is short. These crops want several weeks of indoor growth before they go outside.

Get ahead of June
  • First harvests: escarole

Instant PDF download. No spam, unsubscribe any time.

Escarole is a broad-leaved endive with slightly bitter, sturdy leaves. The outer leaves are more bitter while the blanched heart is tender and mild.

Vanderburgh County, Indiana is in USDA Zone 7a. The average last spring frost is April 7 and the first fall frost is October 29, giving you a growing season of approximately 205 days.

At an elevation of 901 feet, Vanderburgh County receives approximately 40.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Escarole during the growing season.

Vanderburgh County, IN (Zone 7a) Long season
205 days
Last Spring Frost April 7
205 growing days
First Fall Frost October 29
Share this guide:

Vanderburgh County Soil Profile

Soil Type

Silt Loam

Soil pH

6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (122 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 26 – Jun 23
Recommended (50%) ✓ Fits season (121 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jun 2 – Jun 30
Safe Start (90%) ✓ Fits season (126 days to spare)
Start indoors: Mar 17 Transplant: Apr 21 🍅 Harvest: Jun 16 – Jul 14

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 Vanderburgh County

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

Soil pH

Your soil pH (6.0–6.8) is within Escarole's preferred range (5.5–7.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Escarole.

How to Plant Escarole

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Succession Planting Escarole

4
successive plantings in your 205-day season

Sow every 5.7 weeks. Last sowing by Aug 20 to harvest before frost.

For a dedicated fall crop, sow by Aug 20.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 382 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Escarole

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

Month Escarole Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 5" 0" ✅ Rainfall sufficient
Jun 4.3" 5.1" 0" ✅ Rainfall sufficient
Jul 4.3" 3.9" 0.4" 💧 Light watering
Aug 4.3" 3.8" 0.5" 💧 Light watering
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 3.2" 0" ❄️ Dormant
Dec 2.4" 0" ❄️ Dormant

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

Escarole 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.

Escarole needs ~915 GDD — county provides 3,126 GDD Excellent fit

Escarole Planting Timeline — Vanderburgh County, IN

Escarole Planting Calendar

Activity When Date Range
Start Indoors March 3 Mar 3 – Mar 17
Transplant Outdoors April 7 Apr 7 – Apr 21
Direct Sow March 24 Mar 24 – Apr 14
Harvest June 2 Jun 2 – Jun 30
Fall Sowing August 20 Aug 20 – Sep 3

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 7a

📆 Growing Season

205 days in Vanderburgh County

Growing Tips for Escarole in Vanderburgh County

Direct sow Escarole outdoors after April 07 in Vanderburgh County when soil has warmed and frost danger has passed.

Common pests for Escarole in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or late summer. Blanch heads by tying outer leaves together or covering with a pot for 2 weeks before harvest. Excellent braised or in soups.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Escarole in Vanderburgh County, IN?

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

What planting zone is Vanderburgh County, IN?

Vanderburgh County, Indiana is in USDA Hardiness Zone 7a. The average last spring frost is April 7 and first fall frost is October 29.

🌱

Your Vanderburgh County Garden Planner — Free

A 24-page printable planner built for Vanderburgh County (Zone 7a). 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 Vanderburgh 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.