Blog

When to Plant Edamame in Burke County, GA

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.

Burke County, Georgia is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 8, giving you a growing season of approximately 231 days.

At an elevation of 370 feet, Burke County receives approximately 59.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97ยฐF, so Edamame may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Edamame, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Edamame root diseases.

Burke County, GA (Zone 8a) Long season
231 days
Last Spring Frost March 22
231 growing days
First Fall Frost November 8

Burke County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Mar 17 🍅 Harvest: Jun 2 – Jul 14
Recommended (50%) ✓ Fits season (112 days to spare)
Transplant: Mar 22 🍅 Harvest: Jun 7 – Jul 19
Safe Start (90%) ✓ Fits season (109 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 25 – Aug 6

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 Burke County

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

Soil pH

Your soil pH (5.3โ€“6.7) overlaps with Edamame's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Burke County is excellent for Edamame โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Edamame.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Edamame.

How to Plant Edamame

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

Succession Planting Edamame

3
successive plantings in your 231-day season

Sow every 8.6 weeks. Last sowing by Jul 31 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 โ€” 4.6" 0" โ„๏ธ Dormant
Feb โ€” 4.9" 0" โ„๏ธ Dormant
Mar 3.9" 6" 0" โœ… Rainfall sufficient
Apr 3.9" 5.1" 0" โœ… Rainfall sufficient
May 3.9" 5.5" 0" โœ… Rainfall sufficient
Jun 3.9" 5.1" 0" โœ… Rainfall sufficient
Jul 3.9" 5.9" 0" โœ… Rainfall sufficient
Aug 3.9" 5.1" 0" โœ… Rainfall sufficient
Sep 3.9" 4.3" 0" โœ… Rainfall sufficient
Oct 3.9" 4.3" 0" โœ… Rainfall sufficient
Nov 3.9" 4.1" 0" โœ… Rainfall sufficient
Dec โ€” 5.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Burke County). Supplement amounts are based on average rainfall โ€” 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" 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.

Edamame needs ~1,991 GDD — county provides 5,255 GDD Excellent fit

Edamame Planting Timeline โ€” Burke County, GA

Edamame Planting Calendar

Activity When Date Range
Direct Sow March 29 Mar 29 โ€“ Apr 19
Harvest June 14 Jun 14 โ€“ Jul 26

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

75โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

231 days in Burke County

Growing Tips for Edamame in Burke County

Direct sow Edamame outdoors after March 22 in Burke County when soil has warmed and frost danger has passed.

With Burke County's clay soil (30% clay), work in 3-4 inches of compost before planting Edamame. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97ยฐF in Burke 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 Burke County, GA?

Burke County is in Zone 8a with an average last frost of March 22. Plan your Edamame planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Burke County, GA?

Burke County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Burke County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Burke County, GA. Local conditions may vary. Last updated: April 2026.