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When to Plant Arugula in Lenoir County, NC

Arugula is a fast-growing cool-season green with a peppery, nutty flavor. It is excellent in salads and can be harvested as baby greens or mature leaves.

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 Arugula during the growing season. Clay soil retains moisture well for Arugula, 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 (129 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: Apr 25 – Jun 27
Recommended (50%) ✓ Fits season (126 days to spare)
Start indoors: Feb 21 Transplant: Mar 28 🍅 Harvest: May 2 – Jul 4
Safe Start (90%) ✓ Fits season (125 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 18 – Jul 20

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 Lenoir County

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

Soil pH

Your soil pH (5.7โ€“6.3) overlaps with Arugula's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Lenoir County is excellent for Arugula โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Arugula.

How to Plant Arugula

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 Arugula

9
successive plantings in your 224-day season

Sow every 3.4 weeks. Last sowing by Sep 18 to harvest before frost.

For a dedicated fall crop, sow by Aug 29.

Plant Water Budget

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

Monthly Watering Guide for Arugula

Arugula needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Arugula Needs Rainfall You Supplement Action
Jan โ€” 4.5" 0" โ„๏ธ Dormant
Feb โ€” 3.5" 0" โ„๏ธ Dormant
Mar 2.6" 4.5" 0" โœ… Rainfall sufficient
Apr 2.6" 4" 0" โœ… Rainfall sufficient
May 2.6" 4.6" 0" โœ… Rainfall sufficient
Jun 2.6" 3.9" 0" โœ… Rainfall sufficient
Jul 2.6" 4.7" 0" โœ… Rainfall sufficient
Aug 2.6" 4.7" 0" โœ… Rainfall sufficient
Sep 2.6" 3.3" 0" โœ… Rainfall sufficient
Oct 2.6" 3.3" 0" โœ… Rainfall sufficient
Nov 2.6" 4.3" 0" โœ… Rainfall sufficient
Dec โ€” 4.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Lenoir County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Arugula 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" โ€” every day above 50ยฐF 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.

Arugula needs ~760 GDD — county provides 4,256 GDD Excellent fit

Arugula Planting Timeline โ€” Lenoir County, NC

Arugula Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 โ€“ Mar 7
Transplant Outdoors March 28 Mar 28 โ€“ Apr 11
Direct Sow March 14 Mar 14 โ€“ Apr 4
Harvest May 2 May 2 โ€“ Jul 4
Fall Sowing August 29 Aug 29 โ€“ Sep 12

Plant 0.5" deep ยท 6" apart ยท Rows 12" 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
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.6"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

30โ€“50 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

224 days in Lenoir County

Growing Tips for Arugula in Lenoir County

Direct sow Arugula outdoors after March 28 in Lenoir County when soil has warmed and frost danger has passed.

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

Summer highs in Lenoir County reach 92ยฐF โ€” grow Arugula as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 224.0-day season in Lenoir County allows multiple plantings of Arugula. Sow every 15.0 days for continuous harvest.

Common pests for Arugula in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly every 2-3 weeks for continuous harvest. Provide afternoon shade in warm weather to prevent bolting. Harvest outer leaves first to extend production.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Arugula in Lenoir County, NC?

Lenoir County is in Zone 7b with an average last frost of March 28. Plan your Arugula 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.

๐ŸŒฑ

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.

Get Your Free Garden Planner →

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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.