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When to Plant Cucumber in Carteret County, NC

Carteret County, North Carolina Zone 8b May

Your May game plan for Carteret County, North Carolina

We've pulled the most time-sensitive tasks for Carteret County, North Carolina this May and put them front and centre. Tackle them in order.

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. Harvest cucumber as they ripen

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

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

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Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.

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 Cucumber may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Cucumber, 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

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: Feb 11 Transplant: Mar 25 🍅 Harvest: May 20 – Jul 15
Recommended (50%) ✓ Fits season (116 days to spare)
Start indoors: Feb 21 Transplant: Apr 4 🍅 Harvest: May 30 – Jul 25
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Mar 11 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 Cucumber's growing requirements.

Soil pH

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

Soil Texture

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

Drainage

Drainage is adequate for Cucumber.

Organic Matter

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

How to Plant Cucumber

0.5"
Planting Depth
24"
Between Plants
48"
Between Rows

Succession Planting Cucumber

5
successive plantings in your 242-day season

Sow every 5.7 weeks. Last sowing by Sep 09 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 677 gal / 100 sq ft

Monthly Watering Guide for Cucumber

Cucumber needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cucumber Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 6.5" 3.8" 2.7" 💧 Light watering
Apr 6.5" 3.8" 2.7" 💧 Light watering
May 6.5" 3.1" 3.4" 🚿 Regular watering
Jun 6.5" 3.5" 3" 💧 Light watering
Jul 6.5" 4.3" 2.2" 💧 Light watering
Aug 6.5" 4.3" 2.2" 💧 Light watering
Sep 6.5" 3.5" 3" 💧 Light watering
Oct 6.5" 2.6" 3.9" 🚿 Regular watering
Nov 6.5" 3" 3.5" 🚿 Regular 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.

Cucumber 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.

Cucumber needs ~1,275 GDD — county provides 5,142 GDD Excellent fit

Cucumber Planting Timeline — Carteret County, NC

Cucumber Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors April 4 Apr 4 – Apr 18
Direct Sow March 28 Mar 28 – Apr 18
Harvest May 30 May 30 – Jul 25

Plant 0.5" deep · 24" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

242 days in Carteret County

Growing Tips for Cucumber in Carteret County

Direct sow Cucumber 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 Cucumber. Avoid tilling when soil is wet to prevent compaction.

Common pests for Cucumber in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Carteret County, NC?

Carteret County is in Zone 8b with an average last frost of March 21. Plan your Cucumber 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.