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When to plant Endive in Ionia County, MI

Plant Endive in Ionia County, when soil hits 50°F — usually April 17. Continue planting through May 8 for the spring crop. A second sowing from August 1 to August 15 extends the harvest into fall.

When to Plant Endive in Ionia County, MI

Ionia County, Michigan Zone 6a July

July to-do list for Ionia County, Michigan

July is a pivotal month for Ionia County, Michigan gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 1
Avg. first frost October 10
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.9 hrs
  1. Bring in the endive

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Looking ahead to August
  • Fall sowing: endive

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Endive is a leafy green with a slightly bitter flavor, available in curly (frisee) and broad-leaved (escarole) types. It adds texture and complexity to salads.

Ionia County, Michigan is in USDA Zone 6a. The average last spring frost is May 1 and the first fall frost is October 10, giving you a growing season of approximately 162 days.

At an elevation of 705 feet, Ionia County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Endive during the growing season.

Ionia County, MI (Zone 6a) Moderate season
162 days
Last Spring Frost May 1
162 growing days
First Fall Frost October 10

Ionia County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.8

Drainage

Well Drained

Endive Planting Risk Windows

Early Start (70% safe) ✓ Fits season (76 days to spare)
Start indoors: Mar 24 Transplant: Apr 28 🍅 Harvest: Jun 16 – Jul 21
Recommended (50%) ✓ Fits season (78 days to spare)
Start indoors: Mar 27 Transplant: May 1 🍅 Harvest: Jun 19 – Jul 24
Safe Start (90%) ✓ Fits season (74 days to spare)
Start indoors: Apr 15 Transplant: May 20 🍅 Harvest: Jul 8 – Aug 12

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 Ionia County

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

Soil pH

Your soil pH (6.1–6.8) is within Endive's preferred range (5.5–7.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (5.0%) — Endive will thrive.

How to Plant Endive

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 Endive

4
successive plantings in your 162-day season

Sow every 5.1 weeks. Last sowing by Aug 06 to harvest before frost.

For a dedicated fall crop, sow by Aug 01.

Endive Water Budget

Plant needs
0.7″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Endive

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

Month Endive Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 3.1" 0" ❄️ Dormant
May 3" 4.6" 0" ✅ Rainfall sufficient
Jun 3" 4.2" 0" ✅ Rainfall sufficient
Jul 3" 4.3" 0" ✅ Rainfall sufficient
Aug 3" 3.8" 0" ✅ Rainfall sufficient
Sep 3" 3.2" 0" ✅ Rainfall sufficient
Oct 3" 2.8" 0.2" 💧 Light watering
Nov 2.3" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

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

Endive 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.

Endive needs ~839 GDD — county provides 2,470 GDD Excellent fit

Endive Planting Timeline — Ionia County, MI

Endive Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 – Apr 10
Transplant Outdoors May 1 May 1 – May 15
Direct Sow April 17 Apr 17 – May 8
Harvest June 19 Jun 19 – Jul 24
Fall Sowing August 1 Aug 1 – Aug 15

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

45–65 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

162 days in Ionia County

Growing Tips for Endive in Ionia County

Direct sow Endive outdoors after May 01 in Ionia County when soil has warmed and frost danger has passed.

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

General growing tips

Sow seeds directly in spring or fall. Blanch heads by tying outer leaves together 2-3 weeks before harvest to reduce bitterness. Keep soil evenly moist.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Endive in Ionia County, MI?

Ionia County is in Zone 6a with an average last frost of May 1. Plan your Endive planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ionia County, MI?

Ionia County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is May 1 and first fall frost is October 10.

When should I plant Endive in Ionia County, MI?

In Ionia County, MI, plant Endive after the last frost (around May 1) and before the first frost (around October 10). Best results when soil holds above 50°F.

What growing zone is Ionia County, MI for Endive?

Ionia County sits in USDA Zone 6a. Endive grows reliably in zones 3a through 10b, so it's a good fit here.

Can Endive grow in Ionia County's climate?

Yes — Endive grows well in Ionia County's temperate climate. Ionia County averages a 162-day frost-free season, with last frost around May 1 and first frost around October 10.

🌱

Your Ionia County Garden Planner — Free

A 22-page printable planner built for Ionia 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 Ionia County, MI. Local conditions may vary. Last updated: July 2026.

Sources & credits

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