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When to Plant Cilantro in New Hanover County, NC

Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.

New Hanover County, North Carolina is in USDA Zone 8a. 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 90ยฐF, providing good warmth for Cilantro during the growing season. Clay soil retains moisture well for Cilantro, but amend with compost to improve drainage and prevent root rot.

New Hanover County, NC (Zone 8a) 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)
Start indoors: Feb 7 Transplant: Mar 7 🍅 Harvest: Apr 18 – Jun 20
Recommended (50%) ✓ Fits season (140 days to spare)
Start indoors: Feb 16 Transplant: Mar 16 🍅 Harvest: Apr 27 – Jun 29
Safe Start (90%) ✓ Fits season (137 days to spare)
Start indoors: Mar 5 Transplant: Apr 2 🍅 Harvest: May 14 – 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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 507 gal / 100 sq ft
Cilantro needs ~875 GDD — county provides 4,165 GDD Excellent fit

Cilantro Planting Timeline โ€” New Hanover County, NC

Cilantro Planting Calendar

Activity When Date Range
Start Indoors February 16 Feb 16 โ€“ Mar 2
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Direct Sow March 9 Mar 9 โ€“ Mar 30
Fall Sowing September 7 Sep 7 โ€“ Sep 21
Harvest April 27 Apr 27 โ€“ Jun 29

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

40โ€“60 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

238 days

Growing Tips for New Hanover County

Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Level Up Your Garden

Frequently Asked Questions

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

New Hanover County is in Zone 8a with an average last frost of March 23. Plan your Cilantro planting based on this frost date โ€” 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 8a. The average last spring frost is March 23 and first fall frost is November 16.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help New Hanover County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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: April 2026.