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When to Plant Cowpeas in Covington County, MS

Covington County, Mississippi Zone 8b May

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Avg. last frost March 12
Avg. first frost November 15
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Basket week: cowpeas

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

A few tasks this May that'll pay off in June
  • First harvests: cowpeas

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Cowpeas (black-eyed peas) are a heat-loving legume that fixes nitrogen in the soil. They are drought-tolerant and produce protein-rich pods in hot conditions.

Covington County, Mississippi is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 15, giving you a growing season of approximately 248 days.

At an elevation of 469 feet, Covington County receives approximately 48.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Cowpeas may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Cowpeas, but amend with compost to improve drainage and prevent root rot.

Covington County, MS (Zone 8b) Long season
248 days
Last Spring Frost March 12
248 growing days
First Fall Frost November 15

Covington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (142 days to spare)
Transplant: Mar 5 🍅 Harvest: May 7 – Jun 18
Recommended (50%) ✓ Fits season (143 days to spare)
Transplant: Mar 12 🍅 Harvest: May 14 – Jun 25
Safe Start (90%) ✓ Fits season (136 days to spare)
Transplant: Apr 6 🍅 Harvest: Jun 8 – Jul 20

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 Cowpeas's growing requirements.

Soil pH

Your soil pH (5.3–6.2) overlaps with Cowpeas's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Cowpeas.

How to Plant Cowpeas

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

Succession Planting Cowpeas

4
successive plantings in your 248-day season

Sow every 6.9 weeks. Last sowing by Aug 17 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Cowpeas

Cowpeas needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Cowpeas Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 2.2" 4.3" 0" ✅ Rainfall sufficient
Apr 2.2" 3.4" 0" ✅ Rainfall sufficient
May 2.2" 3.9" 0" ✅ Rainfall sufficient
Jun 2.2" 4.2" 0" ✅ Rainfall sufficient
Jul 2.2" 5.6" 0" ✅ Rainfall sufficient
Aug 2.2" 4.6" 0" ✅ Rainfall sufficient
Sep 2.2" 4.2" 0" ✅ Rainfall sufficient
Oct 2.2" 2.7" 0" ✅ Rainfall sufficient
Nov 2.2" 3.7" 0" ✅ Rainfall sufficient
Dec 4.2" 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.

Cowpeas 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.

Cowpeas needs ~1,706 GDD — county provides 5,642 GDD Excellent fit

Cowpeas Planting Timeline — Covington County, MS

Cowpeas Planting Calendar

Activity When Date Range
Direct Sow March 19 Mar 19 – Apr 9
Harvest May 21 May 21 – Jul 2

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

248 days in Covington County

Growing Tips for Cowpeas in Covington County

Direct sow Cowpeas outdoors after March 12 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 Cowpeas. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Covington County, provide afternoon shade for Cowpeas and water deeply in the morning.

Common pests for Cowpeas 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 is thoroughly warm. Do not over-fertilize with nitrogen as cowpeas fix their own. Harvest pods when they begin to dry on the vine for dry beans.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Onion

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cowpeas in Covington County, MS?

Covington County is in Zone 8b with an average last frost of March 12. Plan your Cowpeas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Covington County, MS?

Covington County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 15.

🌱

Your Covington County Garden Planner — Free

A 24-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, MS. 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.