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When to Plant Lima Beans in DeWitt County, TX

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.

DeWitt County, Texas is in USDA Zone 8b. The average last spring frost is March 2 and the first fall frost is November 26, giving you a growing season of approximately 269 days.

At an elevation of 1,649 feet, DeWitt County receives approximately 62.1 inches of rainfall annually with predominantly loam soil. Summer highs average 91ยฐF, providing good warmth for Lima Beans during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lima Beans root diseases.

DeWitt County, TX (Zone 8b) Long season
269 days
Last Spring Frost March 2
269 growing days
First Fall Frost November 26

DeWitt County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (165 days to spare)
Transplant: Feb 18 🍅 Harvest: Apr 22 – Jun 3
Recommended (50%) ✓ Fits season (164 days to spare)
Transplant: Mar 2 🍅 Harvest: May 4 – Jun 15
Safe Start (90%) ✓ Fits season (158 days to spare)
Transplant: Mar 25 🍅 Harvest: May 27 – Jul 8

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 DeWitt County

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

Soil pH

Your soil pH (6.8โ€“7.8) is more alkaline than Lima Beans prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in DeWitt County is excellent for Lima Beans โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Lima Beans.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Lima Beans.

How to Plant Lima Beans

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

Succession Planting Lima Beans

5
successive plantings in your 269-day season

Sow every 6.9 weeks. Last sowing by Aug 28 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.0″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 576 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 1.8" 0" โ„๏ธ Dormant
Feb โ€” 2.1" 0" โ„๏ธ Dormant
Mar 3.9" 4" 0" โœ… Rainfall sufficient
Apr 3.9" 5.9" 0" โœ… Rainfall sufficient
May 3.9" 9.1" 0" โœ… Rainfall sufficient
Jun 3.9" 11.3" 0" โœ… Rainfall sufficient
Jul 3.9" 6.9" 0" โœ… Rainfall sufficient
Aug 3.9" 7.9" 0" โœ… Rainfall sufficient
Sep 3.9" 5.6" 0" โœ… Rainfall sufficient
Oct 3.9" 3.7" 0.2" ๐Ÿ’ง Light watering
Nov 3.9" 2.3" 1.6" ๐Ÿ’ง Light watering
Dec โ€” 1.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in DeWitt County). Supplement amounts are based on average rainfall โ€” 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" 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.

Lima Beans needs ~1,369 GDD — county provides 4,909 GDD Excellent fit

Lima Beans Planting Timeline โ€” DeWitt County, TX

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow March 9 Mar 9 โ€“ Mar 30
Harvest May 11 May 11 โ€“ Jun 22

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

269 days in DeWitt County

Growing Tips for Lima Beans in DeWitt County

Direct sow Lima Beans outdoors after March 02 in DeWitt 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 →

Frequently Asked Questions

When should I plant Lima Beans in DeWitt County, TX?

DeWitt County is in Zone 8b with an average last frost of March 2. Plan your Lima Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is DeWitt County, TX?

DeWitt County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 2 and first fall frost is November 26.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help DeWitt County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for DeWitt County, TX. Local conditions may vary. Last updated: April 2026.