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When to Plant Pole Beans in Carteret County, NC

Carteret County, North Carolina Zone 8b May

Your May gardening checklist

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

Avg. last frost March 21
Avg. first frost November 18
Soil temp (4") 71°F
Watering Moderate
Pest pressure High
Daylight 13.8 hrs
  1. Get pole beans seeds going inside

    These need a head start before your last frost (March 21). Sow into cells now so you're ready to transplant in a few weeks.

  2. Basket week: pole beans

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

Coming up in June — start thinking about
  • First harvests: pole beans

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Pole beans are climbing varieties of green beans that produce over a much longer season than bush types. They require trellising but yield more per square foot.

Carteret County, North Carolina is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 18, giving you a growing season of approximately 242 days.

At an elevation of 469 feet, Carteret County receives approximately 42.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Pole Beans may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Pole Beans, but amend with compost to improve drainage and prevent root rot.

Carteret County, NC (Zone 8b) Long season
242 days
Last Spring Frost March 21
242 growing days
First Fall Frost November 18
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Carteret County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Start indoors: Jan 21 Transplant: Mar 25 🍅 Harvest: May 20 – Jul 15
Recommended (50%) ✓ Fits season (116 days to spare)
Start indoors: Jan 31 Transplant: Apr 4 🍅 Harvest: May 30 – Jul 25
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Feb 18 Transplant: Apr 22 🍅 Harvest: Jun 17 – Aug 12

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 Carteret County

How your county's soil matches Pole Beans's growing requirements.

Soil pH

Your soil pH (5.3–6.5) is more acidic than Pole Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Pole Beans.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Pole Beans.

How to Plant Pole Beans

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

Succession Planting Pole Beans

5
successive plantings in your 242-day season

Sow every 6.3 weeks. Last sowing by Sep 09 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Pole Beans

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

Month Pole Beans Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.3" 3.8" 0.5" 💧 Light watering
Apr 4.3" 3.8" 0.5" 💧 Light watering
May 4.3" 3.1" 1.2" 💧 Light watering
Jun 4.3" 3.5" 0.8" 💧 Light watering
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 4.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 2.6" 1.7" 💧 Light watering
Nov 4.3" 3" 1.3" 💧 Light watering
Dec 3.4" 0" ❄️ Dormant

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

Pole Beans 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.

Pole Beans needs ~1,328 GDD — county provides 5,142 GDD Excellent fit

Pole Beans Planting Timeline — Carteret County, NC

Pole Beans Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors April 4 Apr 4 – Apr 18
Direct Sow March 28 Mar 28 – Apr 18
Harvest May 30 May 30 – Jul 25

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

55–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

242 days in Carteret County

Growing Tips for Pole Beans in Carteret County

Direct sow Pole Beans outdoors after March 21 in Carteret County when soil has warmed and frost danger has passed.

With Carteret County's clay soil (32% clay), work in 3-4 inches of compost before planting Pole Beans. Avoid tilling when soil is wet to prevent compaction.

Common pests for Pole Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Provide sturdy 6-8 foot poles, tepees, or trellises. Direct sow after last frost. Pick regularly to encourage continued production. Beans fix nitrogen benefiting following crops.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pole Beans in Carteret County, NC?

Carteret County is in Zone 8b with an average last frost of March 21. Plan your Pole Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Carteret County, NC?

Carteret County, North Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 18.

🌱

Your Carteret County Garden Planner — Free

A 24-page printable planner built for Carteret 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 Carteret 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.