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When to Plant Green Beans in Bexar County, TX

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.

Bexar County, Texas is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 17, giving you a growing season of approximately 251 days.

At an elevation of 3,197 feet, Bexar County receives approximately 52.1 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Green Beans during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Green Beans root diseases.

Bexar County, TX (Zone 8b) Long season
251 days
Last Spring Frost March 11
251 growing days
First Fall Frost November 17

Bexar County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (144 days to spare)
Transplant: Mar 1 🍅 Harvest: Apr 26 – Jun 21
Recommended (50%) ✓ Fits season (139 days to spare)
Transplant: Mar 11 🍅 Harvest: May 6 – Jul 1
Safe Start (90%) ✓ Fits season (136 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 2 – Jul 28

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 Bexar County

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

Soil pH

Your soil pH (6.5โ€“7.8) is more alkaline than Green Beans prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Green Beans.

How to Plant Green Beans

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

Succession Planting Green Beans

6
successive plantings in your 251-day season

Sow every 5.7 weeks. Last sowing by Sep 13 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.9″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 63 gal / 100 sq ft
Green Beans needs ~1,136 GDD — county provides 4,957 GDD Excellent fit

Green Beans Planting Timeline โ€” Bexar County, TX

Green Beans Planting Calendar

Activity When Date Range
Direct Sow March 18 Mar 18 โ€“ Apr 8
Harvest May 13 May 13 โ€“ Jul 8

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 Harvest
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

0.9"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

50โ€“65 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

251 days in Bexar County

Growing Tips for Green Beans in Bexar County

Direct sow Green Beans outdoors after March 11 in Bexar County when soil has warmed and frost danger has passed.

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

Level Up Your Garden

๐ŸŒพ 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 35ยฐF, under 45% humidity.

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

Frequently Asked Questions

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

Bexar County is in Zone 8b with an average last frost of March 11. Plan your Green Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bexar County, TX?

Bexar County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 17.

๐ŸŒฑ

Plan Your Garden with Confidence

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

Get Your Free Garden Planner →

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