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When to Plant Lima Beans in Caldwell Parish, LA

Caldwell Parish, Louisiana Zone 8b May

Top priorities for Caldwell Parish, Louisiana gardeners in May

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

Avg. last frost March 10
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Basket week: lima beans

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June prep starts now
  • First harvests: lima beans

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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.

Caldwell Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.

At an elevation of 334 feet, Caldwell Parish receives approximately 49.6 inches of rainfall annually with predominantly loam soil. Summer highs average 96°F, so Lima Beans may need afternoon shade and extra watering during peak heat.

Caldwell Parish, LA (Zone 8b) Long season
247 days
Last Spring Frost March 10
247 growing days
First Fall Frost November 12
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Caldwell Parish Soil Profile

Soil Type

Loam

Soil pH

5.9-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (139 days to spare)
Transplant: Mar 4 🍅 Harvest: May 6 – Jun 17
Recommended (50%) ✓ Fits season (142 days to spare)
Transplant: Mar 10 🍅 Harvest: May 12 – Jun 23
Safe Start (90%) ✓ Fits season (132 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 9 – Jul 21

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 Caldwell Parish

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

Soil pH

Your soil pH (5.9–7.0) overlaps with Lima Beans's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Lima Beans.

How to Plant Lima Beans

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

Succession Planting Lima Beans

4
successive plantings in your 247-day season

Sow every 6.9 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.8″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 124 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 4" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 3.9" 4.4" 0" ✅ Rainfall sufficient
Apr 3.9" 4.3" 0" ✅ Rainfall sufficient
May 3.9" 4.3" 0" ✅ Rainfall sufficient
Jun 3.9" 4.5" 0" ✅ Rainfall sufficient
Jul 3.9" 4.6" 0" ✅ Rainfall sufficient
Aug 3.9" 4.8" 0" ✅ Rainfall sufficient
Sep 3.9" 4.1" 0" ✅ Rainfall sufficient
Oct 3.9" 3.5" 0.4" 💧 Light watering
Nov 3.9" 3.6" 0.3" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Caldwell Parish). 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 ~1,650 GDD — county provides 5,434 GDD Excellent fit

Lima Beans Planting Timeline — Caldwell Parish, LA

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow March 17 Mar 17 – Apr 7
Harvest May 19 May 19 – Jun 30

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Caldwell Parish

Growing Tips for Lima Beans in Caldwell Parish

Direct sow Lima Beans outdoors after March 10 in Caldwell Parish when soil has warmed and frost danger has passed.

With summer highs reaching 96°F in Caldwell Parish, provide afternoon shade for Lima Beans and water deeply in the morning.

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 →

Frequently Asked Questions

When should I plant Lima Beans in Caldwell Parish, LA?

Caldwell Parish is in Zone 8b with an average last frost of March 10. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Caldwell Parish, LA?

Caldwell Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.

🌱

Your Caldwell Parish Garden Planner — Free

A 24-page printable planner built for Caldwell Parish (Zone 8b). 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 Caldwell Parish, LA. 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.