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When to Plant Fava Beans in Navarro County, TX

Fava beans are a cool-season legume with large, meaty beans inside thick pods. They fix nitrogen in the soil and are one of the oldest cultivated crops.

Navarro County, Texas is in USDA Zone 8a. The average last spring frost is March 11 and the first fall frost is November 14, giving you a growing season of approximately 248 days.

At an elevation of 221 feet, Navarro County receives approximately 70.4 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, providing good warmth for Fava Beans during the growing season. Clay soil retains moisture well for Fava Beans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fava Beans root diseases.

Navarro County, TX (Zone 8a) Long season
248 days
Last Spring Frost March 11
248 growing days
First Fall Frost November 14

Navarro County Soil Profile

Soil Type

Clay

Soil pH

7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (129 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: May 22 – Jul 3
Recommended (50%) ✓ Fits season (129 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: May 27 – Jul 8
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: Jun 19 – Jul 31

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
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Fava Beans needs ~1,728 GDD — county provides 4,898 GDD Excellent fit

Fava Beans Planting Timeline โ€” Navarro County, TX

Fava Beans Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 โ€“ Feb 18
Transplant Outdoors March 11 Mar 11 โ€“ Mar 25
Direct Sow February 25 Feb 25 โ€“ Mar 18
Fall Sowing September 5 Sep 5 โ€“ Sep 19
Harvest May 27 May 27 โ€“ Jul 8

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April โ€”
May Harvest
June Harvest
July Harvest
August โ€”
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

75โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

248 days

Growing Tips for Navarro County

Direct sow as early as soil can be worked in spring. Pinch growing tips when pods begin to form to redirect energy and reduce aphid problems. Stake tall varieties.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Level Up Your Garden

Frequently Asked Questions

When should I plant Fava Beans in Navarro County, TX?

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

What planting zone is Navarro County, TX?

Navarro County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 11 and first fall frost is November 14.

๐ŸŒฑ

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