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When to Plant Soybeans in Craven County, NC

Craven County, North Carolina Zone 8b May

Your May game plan for Craven County, North Carolina

Here's what deserves your attention in Craven County, North Carolina this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 23
Avg. first frost November 10
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
Looking ahead to June
  • First harvests: soybeans

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Soybeans (edamame) are a high-protein legume that fixes nitrogen in the soil. Fresh green soybeans harvested at the edamame stage are a nutritious snack.

Craven County, North Carolina is in USDA Zone 8b. 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 976 feet, Craven County receives approximately 49.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Soybeans during the growing season. Clay soil retains moisture well for Soybeans, but amend with compost to improve drainage and prevent root rot.

Craven County, NC (Zone 8b) Long season
232 days
Last Spring Frost March 23
232 growing days
First Fall Frost November 10

Craven County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Transplant: Mar 14 🍅 Harvest: Jun 6 – Aug 1
Recommended (50%) ✓ Fits season (92 days to spare)
Transplant: Mar 23 🍅 Harvest: Jun 15 – Aug 10
Safe Start (90%) ✓ Fits season (92 days to spare)
Transplant: Apr 9 🍅 Harvest: Jul 2 – Aug 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 Craven County

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

Soil pH

Your soil pH (5.7–6.8) overlaps with Soybeans's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Soybeans.

How to Plant Soybeans

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

Succession Planting Soybeans

3
successive plantings in your 232-day season

Sow every 9.1 weeks. Last sowing by Jul 13 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 203 gal / 100 sq ft

Monthly Watering Guide for Soybeans

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

Month Soybeans Needs Rainfall You Supplement Action
Jan 4.7" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 3.4" 0.9" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 4.5" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 3.6" 0.7" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

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

Soybeans 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.

Soybeans needs ~1,975 GDD — county provides 4,582 GDD Excellent fit

Soybeans Planting Timeline — Craven County, NC

Soybeans Planting Calendar

Activity When Date Range
Direct Sow March 30 Mar 30 – Apr 20
Harvest June 22 Jun 22 – Aug 17

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 Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

232 days in Craven County

Growing Tips for Soybeans in Craven County

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

With Craven County's clay soil (28% clay), work in 3-4 inches of compost before planting Soybeans. Avoid tilling when soil is wet to prevent compaction.

Common pests for Soybeans 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 warms to 60F. Plant in blocks rather than rows for better pollination. Harvest for edamame when pods are plump and bright green.

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 Soybeans in Craven County, NC?

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

What planting zone is Craven County, NC?

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

🌱

Your Craven County Garden Planner — Free

A 24-page printable planner built for Craven County (Zone 8b). 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 Craven County, NC. 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.