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When to Plant Okra in Lee County, IL

Lee County, Illinois Zone 5b May

May in Lee County, Illinois — your action list

Your Lee County, Illinois garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost April 22
Avg. first frost October 14
Soil temp (4") 60°F
Watering Low
Pest pressure Low
Daylight 14.4 hrs
  1. Time to transplant okra

    Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.

June will be here before you know it — start on
  • Starting indoors: okra

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Okra is a heat-loving tropical plant that produces edible seed pods. It thrives in hot summers and produces beautiful hibiscus-like flowers before setting pods.

Lee County, Illinois is in USDA Zone 5b. The average last spring frost is April 22 and the first fall frost is October 14, giving you a growing season of approximately 175 days.

At an elevation of 1,010 feet, Lee County receives approximately 33.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Okra to ensure they mature before fall.

Lee County, IL (Zone 5b) Moderate season
175 days
Last Spring Frost April 22
175 growing days
First Fall Frost October 14
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Lee County Soil Profile

Soil Type

Silt Loam

Soil pH

6.3-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (50 days to spare)
Start indoors: Feb 20 Transplant: May 1 🍅 Harvest: Jun 26 – Aug 21
Recommended (50%) ✓ Fits season (49 days to spare)
Start indoors: Feb 25 Transplant: May 6 🍅 Harvest: Jul 1 – Aug 26
Safe Start (90%) ✓ Fits season (50 days to spare)
Start indoors: Mar 10 Transplant: May 19 🍅 Harvest: Jul 14 – Sep 8

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 Lee County

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

Soil pH

Your soil pH (6.3–6.9) is within Okra's preferred range (6.0–7.5).

Soil Texture

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

Drainage

Drainage is adequate for Okra.

Organic Matter

Organic matter is excellent (4.8%) — Okra will thrive.

How to Plant Okra

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Okra

4
successive plantings in your 175-day season

Sow every 5.7 weeks. Last sowing by Aug 10 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.8″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 680 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Okra

Okra needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Okra Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 3.9" 2.8" 1.1" 💧 Light watering
May 3.9" 4.4" 0" ✅ Rainfall sufficient
Jun 3.9" 4.2" 0" ✅ Rainfall sufficient
Jul 3.9" 3.3" 0.6" 💧 Light watering
Aug 3.9" 3.5" 0.4" 💧 Light watering
Sep 3.9" 2.9" 1" 💧 Light watering
Oct 3.9" 2.7" 1.2" 💧 Light watering
Nov 2.7" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

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

Okra 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.

Okra needs ~748 GDD — county provides 2,275 GDD Excellent fit

Okra Planting Timeline — Lee County, IL

Okra Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors May 6 May 6 – May 20
Direct Sow April 29 Apr 29 – May 20
Harvest July 1 Jul 1 – Aug 26

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · 1-2 times/week

📅 Days to Maturity

50–65 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 5b

📆 Growing Season

175 days in Lee County

Growing Tips for Okra in Lee County

Direct sow Okra outdoors after April 22 in Lee County when soil has warmed and frost danger has passed.

General growing tips

Direct sow after soil reaches 65F. Soak seeds overnight to improve germination. Harvest pods when 2-4 inches long and still tender; they become tough if left too long.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Okra in Lee County, IL?

Lee County is in Zone 5b with an average last frost of April 22. Plan your Okra planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lee County, IL?

Lee County, Illinois is in USDA Hardiness Zone 5b. The average last spring frost is April 22 and first fall frost is October 14.

🌱

Your Lee County Garden Planner — Free

A 24-page printable planner built for Lee County (Zone 5b). 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 Lee 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.