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When to Plant Edamame in Jones County, NC

Jones County, North Carolina Zone 8a May

Top priorities for Jones County, North Carolina gardeners in May

Your garden in Jones County, North Carolina is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 23
Avg. first frost November 10
Soil temp (4") 74°F
Watering Moderate
Pest pressure High
Daylight 13.8 hrs
A few tasks this May that'll pay off in June
  • First harvests: edamame

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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.

Jones County, North Carolina is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 10, giving you a growing season of approximately 232 days.

At an elevation of 491 feet, Jones County receives approximately 41.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Edamame during the growing season. Clay soil retains moisture well for Edamame, but amend with compost to improve drainage and prevent root rot.

Jones County, NC (Zone 8a) Long season
232 days
Last Spring Frost March 23
232 growing days
First Fall Frost November 10
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Jones County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (117 days to spare)
Transplant: Mar 14 🍅 Harvest: May 30 – Jul 11
Recommended (50%) ✓ Fits season (113 days to spare)
Transplant: Mar 23 🍅 Harvest: Jun 8 – Jul 20
Safe Start (90%) ✓ Fits season (113 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 Jones County

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

Soil pH

Your soil pH (5.3–6.8) overlaps with Edamame's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Jones County is excellent for Edamame — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.1%). 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 232-day season

Sow every 8.6 weeks. Last sowing by Aug 02 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 364 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" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 3.9" 3.8" 0.1" 💧 Light watering
Apr 3.9" 2.8" 1.1" 💧 Light watering
May 3.9" 3.7" 0.2" 💧 Light watering
Jun 3.9" 4" 0" ✅ Rainfall sufficient
Jul 3.9" 4" 0" ✅ Rainfall sufficient
Aug 3.9" 4.5" 0" ✅ Rainfall sufficient
Sep 3.9" 3.1" 0.8" 💧 Light watering
Oct 3.9" 2.8" 1.1" 💧 Light watering
Nov 3.9" 3.5" 0.4" 💧 Light watering
Dec 2.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Jones 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 ~1,531 GDD — county provides 4,060 GDD Excellent fit

Edamame Planting Timeline — Jones County, NC

Edamame Planting Calendar

Activity When Date Range
Direct Sow March 30 Mar 30 – Apr 20
Harvest June 15 Jun 15 – Jul 27

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8a

📆 Growing Season

232 days in Jones County

Growing Tips for Edamame in Jones County

Direct sow Edamame outdoors after March 23 in Jones County when soil has warmed and frost danger has passed.

With Jones County's clay soil (31% clay), work in 3-4 inches of compost before planting Edamame. Avoid tilling when soil is wet to prevent compaction.

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 Jones County, NC?

Jones County is in Zone 8a with an average last frost of March 23. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jones County, NC?

Jones County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 10.

🌱

Your Jones County Garden Planner — Free

A 24-page printable planner built for Jones County (Zone 8a). 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 Jones County, NC. Local conditions may vary. Last updated: May 2026.

Sources & credits

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