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When to Plant Fava Beans in Dallas County, AL

Dallas County, Alabama Zone 8b May

Your May planting checklist for Dallas County, Alabama

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 14
Avg. first frost November 13
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Harvest fava beans as they ripen

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

June will be here before you know it — start on
  • First harvests: fava beans

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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.

Dallas County, Alabama is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 13, giving you a growing season of approximately 244 days.

At an elevation of 182 feet, Dallas County receives approximately 53.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, 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.

Dallas County, AL (Zone 8b) Long season
244 days
Last Spring Frost March 14
244 growing days
First Fall Frost November 13
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Dallas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Start indoors: Jan 31 Transplant: Mar 7 🍅 Harvest: May 23 – Jul 4
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 7 Transplant: Mar 14 🍅 Harvest: May 30 – Jul 11
Safe Start (90%) ✓ Fits season (122 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.

Soil Compatibility in Dallas County

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

Soil pH

Your soil pH (5.3–6.6) is more acidic than Fava Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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 244-day season

Sow every 8.6 weeks. Last sowing by Aug 05 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 179 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 4.1" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.3" 5.8" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 5.2" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 5.8" 0" ✅ Rainfall sufficient
Sep 4.3" 4.5" 0" ✅ Rainfall sufficient
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Dallas 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 ~1,728 GDD — county provides 4,819 GDD Excellent fit

Fava Beans Planting Timeline — Dallas County, AL

Fava Beans Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors March 14 Mar 14 – Mar 28
Direct Sow February 28 Feb 28 – Mar 21
Harvest May 30 May 30 – Jul 11
Fall Sowing September 4 Sep 4 – Sep 18

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Dallas County

Growing Tips for Fava Beans in Dallas County

Direct sow Fava Beans outdoors after March 14 in Dallas County when soil has warmed and frost danger has passed.

With Dallas County's clay soil (28% clay), work in 3-4 inches of compost before planting Fava Beans. Avoid tilling when soil is wet to prevent compaction.

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 Dallas County, AL?

Dallas County is in Zone 8b with an average last frost of March 14. Plan your Fava Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dallas County, AL?

Dallas County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 14 and first fall frost is November 13.

🌱

Your Dallas County Garden Planner — Free

A 24-page printable planner built for Dallas 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 Dallas County, AL. 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.