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When to Plant Cowpeas in Collier County, FL

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.

Collier County, Florida is in USDA Zone 10a. The average last spring frost is January 12 and the first fall frost is April 15, giving you a growing season of approximately 93 days.

At an elevation of 185 feet, Collier County receives approximately 61.3 inches of rainfall annually with predominantly sand soil. Summer highs average 85ยฐF, providing good warmth for Cowpeas during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Cowpeas will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cowpeas root diseases.

Collier County, FL (Zone 10a) Very short season
93 days
Last Spring Frost January 12
93 growing days
First Fall Frost April 15

Collier County Soil Profile

Soil Type

Sand

Soil pH

5-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (178 days to spare)
Transplant: Jan 5 🍅 Harvest: Mar 9 – Apr 20
Recommended (50%) ✓ Fits season (171 days to spare)
Transplant: Jan 12 🍅 Harvest: Mar 16 – Apr 27
Safe Start (90%) ✓ Fits season (143 days to spare)
Transplant: Feb 9 🍅 Harvest: Apr 13 – May 25

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 Collier County

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

Soil pH

Your soil pH (5.0โ€“6.2) overlaps with Cowpeas's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

Sandy soil in Collier County warms quickly in spring but drains fast. Cowpeas will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Cowpeas.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Cowpeas.

How to Plant Cowpeas

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

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/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 2.2" 2.8" 0" โœ… Rainfall sufficient
Feb 2.2" 3.3" 0" โœ… Rainfall sufficient
Mar 2.2" 4.1" 0" โœ… Rainfall sufficient
Apr 2.2" 2.4" 0" โœ… Rainfall sufficient
May 2.2" 3.7" 0" โœ… Rainfall sufficient
Jun 2.2" 7.5" 0" โœ… Rainfall sufficient
Jul 2.2" 10" 0" โœ… Rainfall sufficient
Aug 2.2" 9" 0" โœ… Rainfall sufficient
Sep 2.2" 8.4" 0" โœ… Rainfall sufficient
Oct 2.2" 5.6" 0" โœ… Rainfall sufficient
Nov โ€” 2.3" 0" โ„๏ธ Dormant
Dec โ€” 2.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Janโ€“Oct in Collier 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 ~1,031 GDD — county provides 5,018 GDD Excellent fit

Cowpeas Planting Timeline โ€” Collier County, FL

Cowpeas Planting Calendar

Activity When Date Range
Direct Sow January 19 Jan 19 โ€“ Feb 9
Harvest March 23 Mar 23 โ€“ May 4

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

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Direct Sow
March Harvest
April Harvest
May Harvest
June โ€”
July โ€”
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 10a

๐Ÿ“† Growing Season

93 days in Collier County

Growing Tips for Cowpeas in Collier County

Direct sow Cowpeas outdoors after January 12 in Collier County when soil has warmed and frost danger has passed.

Sandy soil in Collier County dries quickly โ€” mulch Cowpeas with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Collier County, FL?

Collier County is in Zone 10a with an average last frost of January 12. Plan your Cowpeas planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Collier County, FL?

Collier County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 12 and first fall frost is .

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Collier County gardeners in Zone 10a organize planting dates, track what's growing, and never miss a planting window.

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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 Collier County, FL. Local conditions may vary. Last updated: April 2026.