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When to Plant Fava Beans in Delta County, TX

Delta County, Texas Zone 8b August

Delta County, Texas gardeners: here's your August plan

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

Avg. last frost March 15
Avg. first frost November 15
Soil temp (4") 89°F
Watering Low
Pest pressure High
Daylight 13.2 hrs

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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.

Delta County, Texas is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 15, giving you a growing season of approximately 245 days.

At an elevation of 235 feet, Delta County receives approximately 70.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Fava Beans during the growing season. Sandy soil warms quickly in spring — great for early planting — but Fava Beans will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fava Beans root diseases.

Delta County, TX (Zone 8b) Long season
245 days
Last Spring Frost March 15
245 growing days
First Fall Frost November 15

Delta County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.8

Drainage

Well Drained

Fava Beans Planting Risk Windows

Early Start (70% safe) ✓ Fits season (122 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: May 23 – Jul 4
Recommended (50%) ✓ Fits season (126 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: May 31 – Jul 12
Safe Start (90%) ✓ Fits season (116 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jun 25 – Aug 6

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 Delta County

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

Soil pH

Your soil pH (5.4–6.8) overlaps with Fava Beans's range (6.0–7.0), though not a perfect match.

Soil Texture

Sandy soil in Delta County warms quickly in spring but drains fast. Fava Beans will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Fava Beans.

Organic Matter

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

How to Plant Fava Beans

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Fava Beans

3
successive plantings in your 245-day season

Sow every 8.6 weeks. Last sowing by Aug 07 to harvest before frost.

For a dedicated fall crop, sow by Sep 06.

Fava Beans Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 184 gal / 100 sq ft

Monthly Watering Guide for Fava Beans

Fava Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Fava Beans Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 4.3" 4.1" 0.2" 💧 Light watering
Apr 4.3" 6.8" 0" ✅ Rainfall sufficient
May 4.3" 10.6" 0" ✅ Rainfall sufficient
Jun 4.3" 11.2" 0" ✅ Rainfall sufficient
Jul 4.3" 8.2" 0" ✅ Rainfall sufficient
Aug 4.3" 9.9" 0" ✅ Rainfall sufficient
Sep 4.3" 6.7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.6" 0" ✅ Rainfall sufficient
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 2" 0" ❄️ Dormant

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

Fava 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.

Fava Beans needs ~1,597 GDD — county provides 4,471 GDD Excellent fit

Fava Beans Planting Timeline — Delta County, TX

Fava Beans Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 15 Mar 15 – Mar 29
Direct Sow March 1 Mar 1 – Mar 22
Harvest May 31 May 31 – Jul 12
Fall Sowing September 6 Sep 6 – Sep 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

245 days in Delta County

Growing Tips for Fava Beans in Delta County

Direct sow Fava Beans outdoors after March 15 in Delta County when soil has warmed and frost danger has passed.

Sandy soil in Delta County dries quickly — mulch Fava Beans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Fava 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 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

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

Delta County is in Zone 8b with an average last frost of March 15. Plan your Fava Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Delta County, TX?

Delta County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 15.

🌱

Your Delta County Garden Planner — Free

A 22-page printable planner built for Delta 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.

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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 Delta County, TX. Local conditions may vary. Last updated: August 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.