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When to Plant Carrots in New Hanover County, NC

New Hanover County, North Carolina Zone 8b May

This month in New Hanover County, North Carolina

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in New Hanover County, North Carolina.

Avg. last frost March 23
Avg. first frost November 16
Soil temp (4") 72°F
Watering Moderate
Pest pressure High
Daylight 13.8 hrs
  1. Bring in the carrots

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

To set up a strong June, finish these tasks
  • First harvests: carrots

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Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.

New Hanover County, North Carolina is in USDA Zone 8b. The average last spring frost is March 23 and the first fall frost is November 16, giving you a growing season of approximately 238 days.

At an elevation of 674 feet, New Hanover County receives approximately 43.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Carrots during the growing season. Clay soil retains moisture well for Carrots, but amend with compost to improve drainage and prevent root rot.

New Hanover County, NC (Zone 8b) Long season
238 days
Last Spring Frost March 23
238 growing days
First Fall Frost November 16

New Hanover County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (139 days to spare)
Transplant: Mar 14 🍅 Harvest: May 16 – Jun 20
Recommended (50%) ✓ Fits season (140 days to spare)
Transplant: Mar 23 🍅 Harvest: May 25 – Jun 29
Safe Start (90%) ✓ Fits season (137 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 11 – Jul 16

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 New Hanover County

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

Soil pH

Your soil pH (5.3–6.2) is more acidic than Carrots prefers (6.0–6.8). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Carrots

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Carrots

4
successive plantings in your 238-day season

Sow every 6.9 weeks. Last sowing by Aug 28 to harvest before frost.

For a dedicated fall crop, sow by Sep 07.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.8″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 83 gal / 100 sq ft

Monthly Watering Guide for Carrots

Carrots needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Carrots Needs Rainfall You Supplement Action
Jan 3.5" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 3.5" 4.3" 0" ✅ Rainfall sufficient
Apr 3.5" 3.1" 0.4" 💧 Light watering
May 3.5" 3.6" 0" ✅ Rainfall sufficient
Jun 3.5" 3.5" 0" ✅ Rainfall sufficient
Jul 3.5" 5.2" 0" ✅ Rainfall sufficient
Aug 3.5" 4.3" 0" ✅ Rainfall sufficient
Sep 3.5" 3.1" 0.4" 💧 Light watering
Oct 3.5" 2.6" 0.9" 💧 Light watering
Nov 3.5" 3.2" 0.3" 💧 Light watering
Dec 3.5" 0" ❄️ Dormant

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

Carrots 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.

Carrots needs ~1,225 GDD — county provides 4,165 GDD Excellent fit

Carrots Planting Timeline — New Hanover County, NC

Carrots Planting Calendar

Activity When Date Range
Direct Sow March 9 Mar 9 – Mar 30
Harvest May 11 May 11 – Jun 15
Fall Sowing September 7 Sep 7 – Sep 21

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Only during dry spells

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–6.8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

238 days in New Hanover County

Growing Tips for Carrots in New Hanover County

Direct sow Carrots outdoors after March 23 in New Hanover County when soil has warmed and frost danger has passed.

With New Hanover County's clay soil (27% clay), work in 3-4 inches of compost before planting Carrots. Avoid tilling when soil is wet to prevent compaction.

Common pests for Carrots in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.

Companion Planting

Good Companions

Avoid Planting Near

  • Dill
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Carrots Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Replant roots for 2nd year flowers. Harvest umbels when brown.
Storage Store airtight; viable 3 years at 35°F, under 50% humidity.

Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial — requires two seasons.

Frequently Asked Questions

When should I plant Carrots in New Hanover County, NC?

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

What planting zone is New Hanover County, NC?

New Hanover County, North Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 23 and first fall frost is November 16.

🌱

Your New Hanover County Garden Planner — Free

A 24-page printable planner built for New Hanover 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 New Hanover 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.