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When to Plant Yard Long Beans in Bossier Parish, LA

Bossier Parish, Louisiana Zone 8b May

May to-do list for Bossier Parish, Louisiana

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 15
Avg. first frost November 14
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Begin indoor sowing: yard long beans

    You're about 27 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. Pick yard long beans

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

Get ahead of June
  • First harvests: yard long beans

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Yard long beans are a tropical legume that produces slender pods up to 24 inches long. They are a staple in Southeast Asian cooking and thrive in hot weather.

Bossier Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 14, giving you a growing season of approximately 244 days.

At an elevation of 469 feet, Bossier Parish receives approximately 59.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Yard Long Beans during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Yard Long Beans root diseases.

Bossier Parish, LA (Zone 8b) Long season
244 days
Last Spring Frost March 15
244 growing days
First Fall Frost November 14
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Bossier Parish Soil Profile

Soil Type

Loam

Soil pH

6-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (128 days to spare)
Start indoors: Jan 19 Transplant: Mar 23 🍅 Harvest: May 18 – Jun 29
Recommended (50%) ✓ Fits season (132 days to spare)
Start indoors: Jan 25 Transplant: Mar 29 🍅 Harvest: May 24 – Jul 5
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Feb 18 Transplant: Apr 22 🍅 Harvest: Jun 17 – Jul 29

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 Bossier Parish

How your county's soil matches Yard Long Beans's growing requirements.

Soil pH

Your soil pH (6.0–7.2) is within Yard Long Beans's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Yard Long Beans.

How to Plant Yard Long Beans

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

Succession Planting Yard Long Beans

5
successive plantings in your 244-day season

Sow every 6.3 weeks. Last sowing by Aug 26 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Yard Long Beans

Yard Long Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Yard Long Beans Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 5.1" 0" ❄️ Dormant
Mar 4.3" 6.3" 0" ✅ Rainfall sufficient
Apr 4.3" 5" 0" ✅ Rainfall sufficient
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 5" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Bossier Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Yard Long 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.

Yard Long Beans needs ~1,384 GDD — county provides 5,002 GDD Excellent fit

Yard Long Beans Planting Timeline — Bossier Parish, LA

Yard Long Beans Planting Calendar

Activity When Date Range
Start Indoors January 25 Jan 25 – Feb 8
Transplant Outdoors March 29 Mar 29 – Apr 12
Direct Sow March 22 Mar 22 – Apr 12
Harvest May 24 May 24 – Jul 5

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

55–80 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Bossier Parish

Growing Tips for Yard Long Beans in Bossier Parish

Direct sow Yard Long Beans outdoors after March 15 in Bossier Parish when soil has warmed and frost danger has passed.

Common pests for Yard Long 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 warm. Provide tall poles or trellising as vines can reach 8-10 feet. Harvest when pods are pencil-thick before seeds bulge. Cook quickly for best texture.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Yard Long Beans in Bossier Parish, LA?

Bossier Parish is in Zone 8b with an average last frost of March 15. Plan your Yard Long Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bossier Parish, LA?

Bossier Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 14.

🌱

Your Bossier Parish Garden Planner — Free

A 24-page printable planner built for Bossier 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 Bossier 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.