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When to plant Lima Beans in Dwight, IL

Spring Lima Beans in Dwight goes in April 30–May 21, once nighttime temps stop dipping near freezing.

When to Plant Lima Beans in Dwight, IL

Livingston County, Illinois Zone 5b June

Your June game plan for Livingston County, Illinois

Welcome to June in Zone 5b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 23
Avg. first frost October 17
Soil temp (4") 69°F
Watering Low
Pest pressure High
Daylight 14.9 hrs

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Lima beans are a warm-season legume producing large, creamy beans with a buttery texture. Both bush and pole varieties are available, with pole types yielding more.

Dwight, Illinois is in USDA Zone 5b. The average last spring frost is April 23 and the first fall frost is October 17, giving you a growing season of approximately 177 days.

At an elevation of 543 feet, Livingston County receives approximately 41.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Lima Beans to ensure they mature before fall.

Dwight, IL (Zone 5b) Moderate season
177 days
Last Spring Frost April 23
177 growing days
First Fall Frost October 17

Dwight Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.9

Drainage

Well Drained

Lima Beans Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 17 – Jul 29
Recommended (50%) ✓ Fits season (72 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 25 – Aug 6
Safe Start (90%) ✓ Fits season (72 days to spare)
Transplant: May 6 🍅 Harvest: Jul 8 – Aug 19

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 Dwight

How your county's soil matches Lima Beans's growing requirements.

Soil pH

Your soil pH (6.1–6.9) is within Lima Beans's preferred range (6.0–7.0).

Soil Texture

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

Organic Matter

Organic matter is excellent (4.6%) — Lima Beans will thrive.

How to Plant Lima Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Lima Beans

3
successive plantings in your 177-day season

Sow every 6.9 weeks. Last sowing by Jul 19 to harvest before frost.

Lima Beans Water Budget

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

Monthly Watering Guide for Lima Beans

Lima Beans 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 Lima Beans Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 3.9" 4.4" 0" ✅ Rainfall sufficient
May 3.9" 5.2" 0" ✅ Rainfall sufficient
Jun 3.9" 5.1" 0" ✅ Rainfall sufficient
Jul 3.9" 4" 0" ✅ Rainfall sufficient
Aug 3.9" 4.4" 0" ✅ Rainfall sufficient
Sep 3.9" 3.5" 0.4" 💧 Light watering
Oct 3.9" 3.7" 0.2" 💧 Light watering
Nov 2.7" 0" ❄️ Dormant
Dec 2.4" 0" ❄️ Dormant

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

Lima Beans 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.

Lima Beans needs ~919 GDD — county provides 2,168 GDD Excellent fit

Lima Beans Planting Timeline — Dwight, IL

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow April 30 Apr 30 – May 21
Harvest July 2 Jul 2 – Aug 13

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: ideal

🗺️ USDA Zone

Zone 5b

📆 Growing Season

177 days in Livingston County

Growing Tips for Lima Beans in Dwight

Direct sow Lima Beans outdoors after April 23 in Livingston County when soil has warmed and frost danger has passed.

Common pests for Lima Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after soil is thoroughly warm at 65F or above. Do not soak seeds before planting as they may crack. Harvest when pods are plump but still green for fresh limas.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

When should I plant Lima Beans in Dwight, IL?

In Dwight, IL, plant Lima Beans after the last frost (around April 23) and before the first frost (around October 17). Best results when soil holds above 50°F.

What growing zone is Dwight, IL for Lima Beans?

Dwight sits in USDA Zone 5b. Lima Beans grows reliably in zones 3a through 11b, so it's a good fit here.

Can Lima Beans grow in Dwight's climate?

Yes — Lima Beans grows well in Dwight's temperate climate. Dwight averages a 177-day frost-free season, with last frost around April 23 and first frost around October 17.

🌱

Your Livingston County Garden Planner — Free

A 22-page printable planner built for Livingston 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 Livingston County, IL. Local conditions may vary. Last updated: June 2026.