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When to Plant Kidney Beans in Little River County, AR

Little River County, Arkansas Zone 8b May

Little River County, Arkansas gardeners: here's your May plan

May is a pivotal month for Little River County, Arkansas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
June will be here before you know it — start on
  • First harvests: kidney beans

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Kidney beans are a popular dry bean variety named for their shape, available in red and white types. They are the classic bean for chili and red beans and rice.

Little River County, Arkansas is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 1,477 feet, Little River County receives approximately 54 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Kidney Beans during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kidney Beans root diseases.

Little River County, AR (Zone 8b) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12

Little River County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Mar 11 🍅 Harvest: Jun 10 – Jul 15
Recommended (50%) ✓ Fits season (111 days to spare)
Transplant: Mar 20 🍅 Harvest: Jun 19 – Jul 24
Safe Start (90%) ✓ Fits season (108 days to spare)
Transplant: Apr 9 🍅 Harvest: Jul 9 – Aug 13

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 Little River County

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

Soil pH

Your soil pH (5.7–6.6) overlaps with Kidney Beans's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Kidney Beans.

How to Plant Kidney Beans

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 91 gal / 100 sq ft

Monthly Watering Guide for Kidney Beans

Kidney 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 Kidney Beans Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.3" 5.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4" 0.3" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.4" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 4.3" 4.3" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

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

Kidney 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.

Kidney Beans needs ~1,633 GDD — county provides 3,969 GDD Excellent fit

Kidney Beans Planting Timeline — Little River County, AR

Kidney Beans Planting Calendar

Activity When Date Range
Direct Sow March 27 Mar 27 – Apr 17
Harvest June 26 Jun 26 – Jul 31

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Little River County

Growing Tips for Kidney Beans in Little River County

Direct sow Kidney Beans outdoors after March 20 in Little River County when soil has warmed and frost danger has passed.

Common pests for Kidney 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 frost. Allow pods to dry completely on the plant. Kidney beans must be thoroughly cooked as raw or undercooked beans contain harmful lectins.

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 Kidney Beans in Little River County, AR?

Little River County is in Zone 8b with an average last frost of March 20. Plan your Kidney Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Little River County, AR?

Little River County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 12.

🌱

Your Little River County Garden Planner — Free

A 24-page printable planner built for Little River County (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 Little River County, AR. 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.