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When to Plant Cowpeas in Middlesex County, VA

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.

Middlesex County, Virginia is in USDA Zone 7b. The average last spring frost is April 1 and the first fall frost is November 4, giving you a growing season of approximately 217 days.

At an elevation of 812 feet, Middlesex County receives approximately 41.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Cowpeas during the growing season.

Middlesex County, VA (Zone 7b) Long season
217 days
Last Spring Frost April 1
217 growing days
First Fall Frost November 4

Middlesex County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (117 days to spare)
Transplant: Mar 24 🍅 Harvest: May 26 – Jul 7
Recommended (50%) ✓ Fits season (112 days to spare)
Transplant: Apr 1 🍅 Harvest: Jun 3 – Jul 15
Safe Start (90%) ✓ Fits season (110 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 20 – Aug 1

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 Middlesex County

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

Soil pH

Your soil pH (5.7โ€“7.1) overlaps with Cowpeas's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

The silt loam soil in Middlesex County is excellent for Cowpeas โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Cowpeas prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.7%). 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 217-day season

Sow every 6.9 weeks. Last sowing by Aug 06 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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 3.8" 0" โ„๏ธ Dormant
Feb โ€” 3" 0" โ„๏ธ Dormant
Mar โ€” 4.4" 0" โ„๏ธ Dormant
Apr 2.2" 3.5" 0" โœ… Rainfall sufficient
May 2.2" 3.5" 0" โœ… Rainfall sufficient
Jun 2.2" 3.3" 0" โœ… Rainfall sufficient
Jul 2.2" 4.7" 0" โœ… Rainfall sufficient
Aug 2.2" 3.5" 0" โœ… Rainfall sufficient
Sep 2.2" 2.9" 0" โœ… Rainfall sufficient
Oct 2.2" 2.7" 0" โœ… Rainfall sufficient
Nov 2.2" 2.9" 0" โœ… Rainfall sufficient
Dec โ€” 3.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Nov in Middlesex County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,256 GDD — county provides 3,634 GDD Excellent fit

Cowpeas Planting Timeline โ€” Middlesex County, VA

Cowpeas Planting Calendar

Activity When Date Range
Direct Sow April 8 Apr 8 โ€“ Apr 29
Harvest June 10 Jun 10 โ€“ Jul 22

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

217 days in Middlesex County

Growing Tips for Cowpeas in Middlesex County

Direct sow Cowpeas outdoors after April 01 in Middlesex County when soil has warmed and frost danger has passed.

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 Middlesex County, VA?

Middlesex County is in Zone 7b with an average last frost of April 1. Plan your Cowpeas planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Middlesex County, VA?

Middlesex County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 1 and first fall frost is November 4.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Middlesex County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Middlesex County, VA. Local conditions may vary. Last updated: April 2026.