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When to Plant Edamame in Manatee County, FL

Manatee County, Florida Zone 10a May

Your May game plan for Manatee County, Florida

Welcome to May in Zone 10a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost January 28
Avg. first frost December 20
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
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Edamame are soybeans harvested at the immature green stage for a sweet, nutty snack. They are high in protein and easy to grow in warm climates.

Manatee County, Florida is in USDA Zone 10a. The average last spring frost is January 28 and the first fall frost is December 20, giving you a growing season of approximately 326 days.

At an elevation of 237 feet, Manatee County receives approximately 57.6 inches of rainfall annually with predominantly sand soil. Summer highs average 103°F, so Edamame may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Edamame will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Edamame root diseases.

Manatee County, FL (Zone 10a) Year-round
326 days
Last Spring Frost January 28
326 growing days
First Fall Frost December 20

Manatee County Soil Profile

Soil Type

Sand

Soil pH

5-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (201 days to spare)
Transplant: Jan 22 🍅 Harvest: Apr 9 – May 21
Recommended (50%) ✓ Fits season (207 days to spare)
Transplant: Jan 28 🍅 Harvest: Apr 15 – May 27
Safe Start (90%) ✓ Fits season (180 days to spare)
Transplant: Feb 28 🍅 Harvest: May 16 – Jun 27

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 Manatee County

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

Soil pH

Your soil pH (5.0–5.9) is more acidic than Edamame prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Edamame.

How to Plant Edamame

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

Succession Planting Edamame

5
successive plantings in your 326-day season

Sow every 8.6 weeks. Last sowing by Sep 11 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.7″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 466 gal / 100 sq ft

Monthly Watering Guide for Edamame

Edamame needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Edamame Needs Rainfall You Supplement Action
Jan 3.9" 2.6" 1.3" 💧 Light watering
Feb 3.9" 2.8" 1.1" 💧 Light watering
Mar 3.9" 3.3" 0.6" 💧 Light watering
Apr 3.9" 3" 0.9" 💧 Light watering
May 3.9" 3.8" 0.1" 💧 Light watering
Jun 3.9" 8.7" 0" ✅ Rainfall sufficient
Jul 3.9" 8.4" 0" ✅ Rainfall sufficient
Aug 3.9" 7.2" 0" ✅ Rainfall sufficient
Sep 3.9" 8.4" 0" ✅ Rainfall sufficient
Oct 3.9" 4.7" 0" ✅ Rainfall sufficient
Nov 3.9" 2.6" 1.3" 💧 Light watering
Dec 3.9" 2.2" 1.7" 💧 Light watering

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

Edamame 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.

Edamame needs ~2,384 GDD — county provides 8,910 GDD Excellent fit

Edamame Planting Timeline — Manatee County, FL

Edamame Planting Calendar

Activity When Date Range
Direct Sow February 4 Feb 4 – Feb 25
Harvest April 22 Apr 22 – Jun 3

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

326 days in Manatee County

Growing Tips for Edamame in Manatee County

Direct sow Edamame outdoors after January 28 in Manatee County when soil has warmed and frost danger has passed.

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

With summer highs reaching 103°F in Manatee County, provide afternoon shade for Edamame and water deeply in the morning.

Common pests for Edamame 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 warm. Do not over-fertilize with nitrogen. Harvest when pods are plump and bright green but before they start to yellow. Steam or boil pods before eating.

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 Edamame in Manatee County, FL?

Manatee County is in Zone 10a with an average last frost of January 28. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Manatee County, FL?

Manatee County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 28 and first fall frost is December 20.

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A 24-page printable planner built for Manatee 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 Manatee County, FL. 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.