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When to Plant Kidney Beans in Harrison County, TX

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.

Harrison County, Texas is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 14, giving you a growing season of approximately 246 days.

At an elevation of 168 feet, Harrison County receives approximately 63.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Kidney Beans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Kidney Beans will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kidney Beans root diseases.

Harrison County, TX (Zone 8a) Long season
246 days
Last Spring Frost March 13
246 growing days
First Fall Frost November 14

Harrison County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (118 days to spare)
Transplant: Mar 5 🍅 Harvest: Jun 4 – Jul 9
Recommended (50%) ✓ Fits season (120 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 12 – Jul 17
Safe Start (90%) ✓ Fits season (113 days to spare)
Transplant: Apr 5 🍅 Harvest: Jul 5 – Aug 9

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 Harrison County

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

Soil pH

Your soil pH (5.3โ€“6.8) overlaps with Kidney Beans's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

Sandy soil in Harrison County warms quickly in spring but drains fast. Kidney Beans will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Kidney Beans.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting 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
1.1″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 461 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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 1.9" 0" โ„๏ธ Dormant
Mar 4.3" 4.4" 0" โœ… Rainfall sufficient
Apr 4.3" 6" 0" โœ… Rainfall sufficient
May 4.3" 9.7" 0" โœ… Rainfall sufficient
Jun 4.3" 11" 0" โœ… Rainfall sufficient
Jul 4.3" 7.9" 0" โœ… Rainfall sufficient
Aug 4.3" 7.3" 0" โœ… Rainfall sufficient
Sep 4.3" 6.3" 0" โœ… Rainfall sufficient
Oct 4.3" 4" 0.3" ๐Ÿ’ง Light watering
Nov 4.3" 2.3" 2" ๐Ÿ’ง Light watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Harrison County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,145 GDD — county provides 5,412 GDD Excellent fit

Kidney Beans Planting Timeline โ€” Harrison County, TX

Kidney Beans Planting Calendar

Activity When Date Range
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest June 19 Jun 19 โ€“ Jul 24

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

85โ€“110 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

246 days in Harrison County

Growing Tips for Kidney Beans in Harrison County

Direct sow Kidney Beans outdoors after March 13 in Harrison County when soil has warmed and frost danger has passed.

Sandy soil in Harrison County dries quickly โ€” mulch Kidney Beans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96ยฐF in Harrison County, provide afternoon shade for Kidney Beans and water deeply in the morning.

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 Harrison County, TX?

Harrison County is in Zone 8a with an average last frost of March 13. Plan your Kidney Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Harrison County, TX?

Harrison County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

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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 Harrison County, TX. Local conditions may vary. Last updated: April 2026.