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When to plant Black Beans in Pinellas County, FL

For Pinellas County, gardeners: plant Black Beans February 1 through February 22 once soil reads 50°F.

When to Plant Black Beans in Pinellas County, FL

Pinellas County, Florida Zone 10a July

This month in Pinellas County, Florida

Your garden in Pinellas County, Florida is working on a schedule, even when you're not. Here's where you should be this July.

Avg. last frost January 25
Avg. first frost December 16
Soil temp (4") 95°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Plan the fall garden

    Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.

  2. Keep heat-survivor crops productive

    Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.

  3. Watch for hurricane prep season

    August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.

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Black beans are a warm-season legume producing small, dark, protein-rich beans that are a staple in Latin American and Caribbean cuisines.

Pinellas County, Florida is in USDA Zone 10a. The average last spring frost is January 25 and the first fall frost is December 16, giving you a growing season of approximately 325 days.

At an elevation of 246 feet, Pinellas County receives approximately 58.1 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Black Beans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Black Beans will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Black Beans root diseases.

Pinellas County, FL (Zone 10a) Year-round
325 days
Last Spring Frost January 25
325 growing days
First Fall Frost December 16

Pinellas County Soil Profile

Soil Type

Sand

Soil pH

5.1-6.2

Drainage

Well Drained

Black Beans Planting Risk Windows

Early Start (70% safe) ✓ Fits season (185 days to spare)
Transplant: Jan 19 🍅 Harvest: Apr 20 – Jun 8
Recommended (50%) ✓ Fits season (185 days to spare)
Transplant: Jan 25 🍅 Harvest: Apr 26 – Jun 14
Safe Start (90%) ✓ Fits season (159 days to spare)
Transplant: Feb 28 🍅 Harvest: May 30 – Jul 18

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 Pinellas County

How your county's soil matches Black Beans's growing requirements.

Soil pH

Your soil pH (5.1–6.2) is more acidic than Black Beans prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Black Beans.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Black Beans.

How to Plant Black Beans

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

Black Beans Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,600 gal / 100 sq ft

Monthly Watering Guide for Black Beans

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

Month Black Beans Needs Rainfall You Supplement Action
Jan 4.3" 2.9" 1.4" 💧 Light watering
Feb 4.3" 3.2" 1.1" 💧 Light watering
Mar 4.3" 3.7" 0.6" 💧 Light watering
Apr 4.3" 2.4" 1.9" 💧 Light watering
May 4.3" 3.6" 0.7" 💧 Light watering
Jun 4.3" 7.6" 0" ✅ Rainfall sufficient
Jul 4.3" 8.5" 0" ✅ Rainfall sufficient
Aug 4.3" 8.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7.1" 0" ✅ Rainfall sufficient
Oct 4.3" 5.3" 0" ✅ Rainfall sufficient
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 4.3" 2.6" 1.7" 💧 Light watering

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

Black Beans 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.

Black Beans needs ~2,782 GDD — county provides 8,639 GDD Excellent fit

Black Beans Planting Timeline — Pinellas County, FL

Black Beans Planting Calendar

Activity When Date Range
Direct Sow February 1 Feb 1 – Feb 22
Harvest May 3 May 3 – Jun 21

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

325 days in Pinellas County

Growing Tips for Black Beans in Pinellas County

Direct sow Black Beans outdoors after January 25 in Pinellas County when soil has warmed and frost danger has passed.

Sandy soil in Pinellas County dries quickly — mulch Black Beans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 102°F in Pinellas County, provide afternoon shade for Black Beans and water deeply in the morning.

Common pests for Black Beans 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 last frost. Provide support for climbing varieties. Allow pods to dry fully on the vine before harvesting. Thresh dried pods by hand or in a pillowcase.

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 Black Beans in Pinellas County, FL?

Pinellas County is in Zone 10a with an average last frost of January 25. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pinellas County, FL?

Pinellas County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 25 and first fall frost is December 16.

When should I plant Black Beans in Pinellas County, FL?

In Pinellas County, FL, plant Black Beans after the last frost (around January 25) and before the first frost (around December 16). Best results when soil holds above 50°F.

What growing zone is Pinellas County, FL for Black Beans?

Pinellas County sits in USDA Zone 10a. Black Beans grows reliably in zones 3a through 11b, so it's a good fit here.

Can Black Beans grow in Pinellas County's climate?

Yes — Black Beans grows well in Pinellas County's temperate climate. Pinellas County averages a 326-day frost-free season, with last frost around January 25 and first frost around December 16.

🌱

Your Pinellas County Garden Planner — Free

A 22-page printable planner built for Pinellas County (Zone 10a). 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 Pinellas County, FL. 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.