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When to Plant Cowpeas in USDA Zone 10a

Zone 10a Zone 10a May

Your May game plan for Zone 10a

A quick May briefing for Zone 10a gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 1
Avg. first frost December 19
  1. Basket week: 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.

In Zone 10a, the average last spring frost is around January 1 and the first fall frost is around December 31, giving you a growing season of approximately 364 days.

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Zone 10a Year-round
364 days
Last Spring Frost January 1
364 growing days
First Fall Frost December 31

Cowpeas Planting Timeline — Zone 10a

Where Is USDA Zone 10a?

The map below highlights the states that contain Zone 10a. Click any state to see the Cowpeas planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Cowpeas Planting Calendar — Zone 10a

Activity When Date Range
Direct Sow January 8 Jan 8 – Jan 29
Harvest March 12 Mar 12 – Apr 23

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

Month-by-Month Timeline

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

Free Zone 10a Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 10a with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

Days to Maturity

60–90 days

Soil pH

5.5 – 7

Zone Temperature Range

°F to °F average annual minimum

Growing Season

364 days (Zone average)

Planting Specifications

Planting Depth1 inches
Plant Spacing15 inches apart
Row Spacing24 inches between rows

Succession Planting Cowpeas in Zone

7
successive plantings in Zone 's ~364-day season

Sow every 6.9 weeks for continuous harvest throughout the season.

Growing Tips for Cowpeas in Zone

Zone has a short growing season (~364 days). Start Cowpeas indoors early and use season-extension techniques like row covers and cold frames.

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
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Saving Cowpeas Seeds

Recommended for Your Garden

🌱
Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

🏷️
Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

Related Plants

Frequently Asked Questions

When should I plant Cowpeas in Zone 10a?

In Zone 10a, plan your Cowpeas planting around the average last frost date of January 1. Direct sow outdoors around January 8.

Can Cowpeas grow in Zone 10a?

Yes, Cowpeas can grow well in Zone 10a, hardy in USDA zones 5a through 11b. Zone 10a has a growing season of approximately 364 days, which is sufficient for Cowpeas (60-90 days to maturity).

When can I harvest Cowpeas in Zone 10a?

In Zone 10a, expect to harvest Cowpeas from March 12 – April 23. Cowpeas takes 60-90 days from planting to harvest.

What is the last frost date for Zone 10a?

The average last spring frost in Zone 10a is around January 1, and the first fall frost is around December 31. This gives a growing season of approximately 364 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Cowpeas?

Good companion plants for Cowpeas include Corn, Squash Summer, Sunflower. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Free Printable Garden Planner

A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — 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.