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When to plant Soybeans in Covington County, AL

The best window to plant Soybeans in Covington County, is March 27–April 17, when soil warms to 50°F. Last frost typically hits March 20; first frost November 11.

When to Plant Soybeans in Covington County, AL

Covington County, Alabama Zone 8b July

Your July planting checklist for Covington County, Alabama

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

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 90°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Harvest soybeans as they ripen

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

A few tasks this July that'll pay off in August
  • First harvests: soybeans

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Soybeans (edamame) are a high-protein legume that fixes nitrogen in the soil. Fresh green soybeans harvested at the edamame stage are a nutritious snack.

Covington County, Alabama is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 392 feet, Covington County receives approximately 50.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Soybeans may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Soybeans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Soybeans root diseases.

Covington County, AL (Zone 8b) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Covington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Soybeans Planting Risk Windows

Early Start (70% safe) ✓ Fits season (95 days to spare)
Transplant: Mar 12 🍅 Harvest: Jun 4 – Jul 30
Recommended (50%) ✓ Fits season (96 days to spare)
Transplant: Mar 20 🍅 Harvest: Jun 12 – Aug 7
Safe Start (90%) ✓ Fits season (87 days to spare)
Transplant: Apr 11 🍅 Harvest: Jul 4 – Aug 29

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 Covington County

How your county's soil matches Soybeans's growing requirements.

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Soybeans.

How to Plant Soybeans

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

Succession Planting Soybeans

3
successive plantings in your 236-day season

Sow every 9.1 weeks. Last sowing by Jul 14 to harvest before frost.

Soybeans 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 209 gal / 100 sq ft

Monthly Watering Guide for Soybeans

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

Month Soybeans Needs Rainfall You Supplement Action
Jan 3.9" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 4.7" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 4.3" 3.4" 0.9" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

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

Soybeans 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.

Soybeans needs ~2,125 GDD — county provides 5,015 GDD Excellent fit

Soybeans Planting Timeline — Covington County, AL

Soybeans Planting Calendar

Activity When Date Range
Direct Sow March 27 Mar 27 – Apr 17
Harvest June 19 Jun 19 – Aug 14

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

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
May
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

236 days in Covington County

Growing Tips for Soybeans in Covington County

Direct sow Soybeans outdoors after March 20 in Covington County when soil has warmed and frost danger has passed.

With Covington County's clay soil (33% clay), work in 3-4 inches of compost before planting Soybeans. Avoid tilling when soil is wet to prevent compaction.

Common pests for Soybeans 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 soil warms to 60F. Plant in blocks rather than rows for better pollination. Harvest for edamame when pods are plump and bright green.

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 Soybeans in Covington County, AL?

Covington County is in Zone 8b with an average last frost of March 20. Plan your Soybeans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Covington County, AL?

Covington County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 11.

When should I plant Soybeans in Covington County, AL?

In Covington County, AL, plant Soybeans after the last frost (around March 20) and before the first frost (around November 11). Best results when soil holds above 50°F.

What growing zone is Covington County, AL for Soybeans?

Covington County sits in USDA Zone 8b. Soybeans grows reliably in zones 3a through 10b, so it's a good fit here.

Can Soybeans grow in Covington County's climate?

Yes — Soybeans grows well in Covington County's temperate climate. Covington County averages a 236-day frost-free season, with last frost around March 20 and first frost around November 11.

🌱

Your Covington County Garden Planner — Free

A 22-page printable planner built for Covington 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 Covington County, AL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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