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When to plant Edamame in Sumter County County,

Sumter County County gardeners should plant Edamame between February 13 and March 6 in spring. With Sumter County County's Zone 9b climate (last frost February 6), Edamame needs 100 days to mature — plant by August 28 for a full harvest.

When to Plant Edamame in Sumter County, FL

Sumter County, Florida Zone 9b June

Top priorities for Sumter County, Florida gardeners in June

A quick June briefing for Sumter County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 6
Avg. first frost December 6
Soil temp (4") 85°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Collect edamame at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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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.

Sumter County, Florida is in USDA Zone 9b. The average last spring frost is February 6 and the first fall frost is December 6, giving you a growing season of approximately 303 days.

At an elevation of 463 feet, Sumter County receives approximately 60.9 inches of rainfall annually with predominantly sand soil. Summer highs average 96°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.

Sumter County, FL (Zone 9b) Year-round
303 days
Last Spring Frost February 6
303 growing days
First Fall Frost December 6

Sumter County Soil Profile

Soil Type

Sand

Soil pH

5-6.1

Drainage

Well Drained

Edamame Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Transplant: Jan 24 🍅 Harvest: Apr 11 – May 23
Recommended (50%) ✓ Fits season (184 days to spare)
Transplant: Feb 6 🍅 Harvest: Apr 24 – Jun 5
Safe Start (90%) ✓ Fits season (177 days to spare)
Transplant: Mar 4 🍅 Harvest: May 20 – Jul 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 Sumter County

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

Soil pH

Your soil pH (5.0–6.1) is more acidic than Edamame prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Edamame.

Organic Matter

Organic matter is low (1.4%). 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

4
successive plantings in your 303-day season

Sow every 8.6 weeks. Last sowing by Aug 28 to harvest before frost.

Edamame Water Budget

Plant needs
0.9″/week
Rainfall provides
0.8″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 1,067 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.2" 0" ❄️ Dormant
Feb 3.9" 3.3" 0.6" 💧 Light watering
Mar 3.9" 3.6" 0.3" 💧 Light watering
Apr 3.9" 2.7" 1.2" 💧 Light watering
May 3.9" 4.3" 0" ✅ Rainfall sufficient
Jun 3.9" 8" 0" ✅ Rainfall sufficient
Jul 3.9" 8.7" 0" ✅ Rainfall sufficient
Aug 3.9" 8.5" 0" ✅ Rainfall sufficient
Sep 3.9" 7.6" 0" ✅ Rainfall sufficient
Oct 3.9" 6.1" 0" ✅ Rainfall sufficient
Nov 3.9" 2.6" 1.3" 💧 Light watering
Dec 3.9" 2.5" 1.4" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Sumter 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 ~1,925 GDD — county provides 6,688 GDD Excellent fit

Edamame Planting Timeline — Sumter County, FL

Edamame Planting Calendar

Activity When Date Range
Direct Sow February 13 Feb 13 – Mar 6
Harvest May 1 May 1 – Jun 12

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · 1-2 times/week

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

303 days in Sumter County

Growing Tips for Edamame in Sumter County

Direct sow Edamame outdoors after February 06 in Sumter County when soil has warmed and frost danger has passed.

Sandy soil in Sumter 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 96°F in Sumter 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 Sumter County, FL?

Sumter County is in Zone 9b with an average last frost of February 6. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sumter County, FL?

Sumter County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 6 and first fall frost is December 6.

When should I plant Edamame in Sumter County, ?

In Sumter County, , plant Edamame after the last frost (around February 6) and before the first frost (around December 6). Best results when soil holds above 50°F.

What growing zone is Sumter County, for Edamame?

Sumter County sits in USDA Zone 9b. Edamame grows reliably in zones 3a through 10b, so it's a good fit here.

Can Edamame grow in Sumter County's climate?

Yes — Edamame grows well in Sumter County's temperate climate. Sumter County averages a 304-day frost-free season, with last frost around February 6 and first frost around December 6.

🌱

Your Sumter County Garden Planner — Free

A 22-page printable planner built for Sumter County (Zone 9b). 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 Sumter County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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