Blog

When to Plant Green Beans in McCulloch County, TX

McCulloch County, Texas Zone 8b May

Your May game plan for McCulloch County, Texas

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

Avg. last frost March 17
Avg. first frost November 16
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Pick green 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: green beans

Instant PDF download. No spam, unsubscribe any time.

Green beans are a warm-season staple available as bush or pole types. Bush beans produce a concentrated harvest while pole beans provide a longer picking season.

McCulloch County, Texas is in USDA Zone 8b. The average last spring frost is March 17 and the first fall frost is November 16, giving you a growing season of approximately 244 days.

At an elevation of 1,250 feet, McCulloch County receives approximately 60.1 inches of rainfall annually with predominantly loam soil. Summer highs average 96°F, so Green Beans may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Green Beans root diseases.

McCulloch County, TX (Zone 8b) Long season
244 days
Last Spring Frost March 17
244 growing days
First Fall Frost November 16

McCulloch County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (136 days to spare)
Transplant: Mar 8 🍅 Harvest: May 3 – Jun 28
Recommended (50%) ✓ Fits season (132 days to spare)
Transplant: Mar 17 🍅 Harvest: May 12 – Jul 7
Safe Start (90%) ✓ Fits season (129 days to spare)
Transplant: Apr 8 🍅 Harvest: Jun 3 – 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 McCulloch County

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

Soil pH

Your soil pH (6.8–7.7) is more alkaline than Green Beans prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in McCulloch County is excellent for Green Beans — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Green Beans

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

Succession Planting Green Beans

5
successive plantings in your 244-day season

Sow every 5.7 weeks. Last sowing by Sep 12 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Green Beans

Green 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 Green Beans Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 3.9" 3.5" 0.4" 💧 Light watering
Apr 3.9" 6.6" 0" ✅ Rainfall sufficient
May 3.9" 9.8" 0" ✅ Rainfall sufficient
Jun 3.9" 8.6" 0" ✅ Rainfall sufficient
Jul 3.9" 8" 0" ✅ Rainfall sufficient
Aug 3.9" 7" 0" ✅ Rainfall sufficient
Sep 3.9" 5.1" 0" ✅ Rainfall sufficient
Oct 3.9" 3.9" 0" ✅ Rainfall sufficient
Nov 3.9" 2.2" 1.7" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

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

Green 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.

Green Beans needs ~1,265 GDD — county provides 5,368 GDD Excellent fit

Green Beans Planting Timeline — McCulloch County, TX

Green Beans Planting Calendar

Activity When Date Range
Direct Sow March 24 Mar 24 – Apr 14
Harvest May 19 May 19 – Jul 14

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 Harvest
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

50–65 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in McCulloch County

Growing Tips for Green Beans in McCulloch County

Direct sow Green Beans outdoors after March 17 in McCulloch County when soil has warmed and frost danger has passed.

With summer highs reaching 96°F in McCulloch County, provide afternoon shade for Green Beans and water deeply in the morning.

Common pests for Green 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 last frost when soil is warm. Provide sturdy supports for pole varieties. Pick beans regularly when young and tender to encourage continued production.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Green Beans Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Allow pods to dry fully on vine until they rattle.
Storage Store airtight; viable 4 years at 35°F, under 45% humidity.

Avoid harvesting during damp weather. Isolate 25 ft between varieties.

Frequently Asked Questions

When should I plant Green Beans in McCulloch County, TX?

McCulloch County is in Zone 8b with an average last frost of March 17. Plan your Green Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is McCulloch County, TX?

McCulloch County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 17 and first fall frost is November 16.

🌱

Your McCulloch County Garden Planner — Free

A 24-page printable planner built for McCulloch 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for McCulloch County, TX. 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.