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When to Plant Fennel (herb) in Lenoir County, NC

Herb fennel is grown for its aromatic leaves, stalks, and seeds rather than a bulb. It has a strong anise flavor and its flowers attract beneficial insects.

Lenoir County, North Carolina is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 7, giving you a growing season of approximately 224 days.

At an elevation of 480 feet, Lenoir County receives approximately 49.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92ยฐF, providing good warmth for Fennel (herb) during the growing season. Clay soil retains moisture well for Fennel (herb), but amend with compost to improve drainage and prevent root rot.

Lenoir County, NC (Zone 7b) Long season
224 days
Last Spring Frost March 28
224 growing days
First Fall Frost November 7

Lenoir County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Feb 14 Transplant: Mar 14 🍅 Harvest: May 16 – Jul 25
Recommended (50%) ✓ Fits season (98 days to spare)
Start indoors: Feb 21 Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1
Safe Start (90%) ✓ Fits season (97 days to spare)
Start indoors: Mar 9 Transplant: Apr 6 🍅 Harvest: Jun 8 – Aug 17

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
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 132 gal / 100 sq ft
Fennel (herb) needs ~1,425 GDD — county provides 4,256 GDD Excellent fit

Fennel (herb) Planting Timeline โ€” Lenoir County, NC

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 โ€“ Mar 7
Transplant Outdoors March 21 Mar 21 โ€“ Apr 4
Direct Sow March 14 Mar 14 โ€“ Apr 4
Fall Sowing August 29 Aug 29 โ€“ Sep 12
Harvest May 23 May 23 โ€“ Aug 1

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 7b

Growing Season

224 days

Growing Tips for Lenoir County

Direct sow in spring or fall. Unlike Florence fennel, herb fennel does not form a bulb. Harvest fronds as needed and seeds when they turn brown. Self-sows readily.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Green Beans

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Frequently Asked Questions

When should I plant Fennel (herb) in Lenoir County, NC?

Lenoir County is in Zone 7b with an average last frost of March 28. Plan your Fennel (herb) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lenoir County, NC?

Lenoir County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 7.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lenoir County gardeners in Zone 7b 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 Lenoir County, NC. Local conditions may vary. Last updated: April 2026.