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When to Plant Epazote in Clinton County, IL

Clinton County, Illinois Zone 6b May

Clinton County, Illinois gardeners: here's your May plan

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Clinton County, Illinois.

Avg. last frost April 10
Avg. first frost October 19
Soil temp (4") 63°F
Watering Low
Pest pressure Low
Daylight 14.1 hrs
  1. Time to start epazote inside

    These need a head start before your last frost (April 10). Sow into cells now so you're ready to transplant in a few weeks.

A few tasks this May that'll pay off in June
  • First harvests: epazote

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Epazote is a pungent Mexican herb traditionally cooked with black beans to reduce their gas-causing properties. It has a strong, unique flavor that is an acquired taste.

Clinton County, Illinois is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 19, giving you a growing season of approximately 192 days.

At an elevation of 1,142 feet, Clinton County receives approximately 38.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Epazote during the growing season.

Clinton County, IL (Zone 6b) Moderate season
192 days
Last Spring Frost April 10
192 growing days
First Fall Frost October 19
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Clinton County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Start indoors: Feb 14 Transplant: Apr 18 🍅 Harvest: Jun 6 – Aug 1
Recommended (50%) ✓ Fits season (73 days to spare)
Start indoors: Feb 20 Transplant: Apr 24 🍅 Harvest: Jun 12 – Aug 7
Safe Start (90%) ✓ Fits season (75 days to spare)
Start indoors: Mar 1 Transplant: May 3 🍅 Harvest: Jun 21 – Aug 16

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 Clinton County

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

Soil pH

Your soil pH (6.0–7.0) is within Epazote's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

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

How to Plant Epazote

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

Succession Planting Epazote

5
successive plantings in your 192-day season

Sow every 5.1 weeks. Last sowing by Aug 20 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/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 Epazote

Epazote needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Epazote Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 2.2" 3.5" 0" ✅ Rainfall sufficient
May 2.2" 4.3" 0" ✅ Rainfall sufficient
Jun 2.2" 4.9" 0" ✅ Rainfall sufficient
Jul 2.2" 4.3" 0" ✅ Rainfall sufficient
Aug 2.2" 3.9" 0" ✅ Rainfall sufficient
Sep 2.2" 3.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.2" 0" ✅ Rainfall sufficient
Nov 2.6" 0" ❄️ Dormant
Dec 1.7" 0" ❄️ Dormant

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

Epazote 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.

Epazote needs ~722 GDD — county provides 2,640 GDD Excellent fit

Epazote Planting Timeline — Clinton County, IL

Epazote Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors April 24 Apr 24 – May 8
Direct Sow April 17 Apr 17 – May 8
Harvest June 12 Jun 12 – Aug 7

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 6b

📆 Growing Season

192 days in Clinton County

Growing Tips for Epazote in Clinton County

Direct sow Epazote outdoors after April 10 in Clinton County when soil has warmed and frost danger has passed.

Your generous 192.0-day season in Clinton County allows multiple plantings of Epazote. Sow every 22.0 days for continuous harvest.

General growing tips

Direct sow after last frost. Epazote grows easily and self-sows aggressively. Use sparingly in cooking as the flavor is very strong. Harvest leaves before flowering for best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Epazote in Clinton County, IL?

Clinton County is in Zone 6b with an average last frost of April 10. Plan your Epazote planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clinton County, IL?

Clinton County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 10 and first fall frost is October 19.

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Your Clinton County Garden Planner — Free

A 24-page printable planner built for Clinton County (Zone 6b). 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 Clinton County, IL. 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.