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When to Plant Green Beans in Robertson 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.

Robertson County, Texas is in USDA Zone 8a. The average last spring frost is March 7 and the first fall frost is November 16, giving you a growing season of approximately 254 days.

At an elevation of 85 feet, Robertson County receives approximately 61.1 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, providing good warmth for Green Beans during the growing season. Clay soil retains moisture well for Green Beans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Green Beans root diseases.

Robertson County, TX (Zone 8a) Long season
254 days
Last Spring Frost March 7
254 growing days
First Fall Frost November 16

Robertson County Soil Profile

Soil Type

Clay

Soil pH

6.8-8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (144 days to spare)
Transplant: Feb 28 🍅 Harvest: Apr 25 – Jun 20
Recommended (50%) ✓ Fits season (142 days to spare)
Transplant: Mar 7 🍅 Harvest: May 2 – Jun 27
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.

Plant Water Budget

Plant needs
1.0″/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 โ€” consider drought-tolerant varieties and mulching

Green Beans needs ~1,136 GDD — county provides 5,016 GDD Excellent fit

Green Beans Planting Timeline โ€” Robertson County, TX

Green Beans Planting Calendar

Activity When Date Range
Direct Sow March 14 Mar 14 โ€“ Apr 4
Harvest May 9 May 9 โ€“ Jul 4

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

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

50โ€“65 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

254 days

Growing Tips for Robertson County

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 Robertson County, TX?

Robertson County is in Zone 8a with an average last frost of March 7. Plan your Green Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Robertson County, TX?

Robertson County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 7 and first fall frost is November 16.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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