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When to plant Arugula in Carroll County, AR

Carroll County's climate puts the Arugula spring window between March 31 and April 21. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from August 16 to August 30 extends the harvest into fall.

When to Plant Arugula in Carroll County, AR

Carroll County, Arkansas Zone 7a June

Your June game plan for Carroll County, Arkansas

Your garden in Carroll County, Arkansas is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost April 14
Avg. first frost October 25
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
  1. Collect arugula at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Coming up in July — start thinking about
  • First harvests: arugula

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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.

Carroll County, Arkansas is in USDA Zone 7a. The average last spring frost is April 14 and the first fall frost is October 25, giving you a growing season of approximately 194 days.

At an elevation of 1,166 feet, Carroll County receives approximately 53.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Arugula during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Arugula root diseases.

Carroll County, AR (Zone 7a) Moderate season
194 days
Last Spring Frost April 14
194 growing days
First Fall Frost October 25

Carroll County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Arugula Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Start indoors: Mar 1 Transplant: Apr 5 🍅 Harvest: May 10 – Jul 12
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: May 19 – Jul 21
Safe Start (90%) ✓ Fits season (98 days to spare)
Start indoors: Mar 23 Transplant: Apr 27 🍅 Harvest: Jun 1 – Aug 3

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 Carroll County

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

Soil pH

Your soil pH (5.5–6.8) overlaps with Arugula's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Carroll County is excellent for Arugula — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). 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

7
successive plantings in your 194-day season

Sow every 3.4 weeks. Last sowing by Sep 05 to harvest before frost.

For a dedicated fall crop, sow by Aug 16.

Arugula Water Budget

Plant needs
0.6″/week
Rainfall provides
1.2″/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 4.3" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 5" 0" ❄️ Dormant
Apr 2.6" 3.4" 0" ✅ Rainfall sufficient
May 2.6" 4.6" 0" ✅ Rainfall sufficient
Jun 2.6" 4.8" 0" ✅ Rainfall sufficient
Jul 2.6" 5.5" 0" ✅ Rainfall sufficient
Aug 2.6" 5.7" 0" ✅ Rainfall sufficient
Sep 2.6" 4.6" 0" ✅ Rainfall sufficient
Oct 2.6" 3.2" 0" ✅ Rainfall sufficient
Nov 3.9" 0" ❄️ Dormant
Dec 4.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Carroll County). Supplement amounts are based on average rainfall — 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" — 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.

Arugula needs ~640 GDD — county provides 3,104 GDD Excellent fit

Arugula Planting Timeline — Carroll County, AR

Arugula Planting Calendar

Activity When Date Range
Start Indoors March 10 Mar 10 – Mar 24
Transplant Outdoors April 14 Apr 14 – Apr 28
Direct Sow March 31 Mar 31 – Apr 21
Harvest May 19 May 19 – Jul 21
Fall Sowing August 16 Aug 16 – Aug 30

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

30–50 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

194 days in Carroll County

Growing Tips for Arugula in Carroll County

Direct sow Arugula outdoors after April 14 in Carroll County when soil has warmed and frost danger has passed.

Your generous 194.0-day season in Carroll 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 Carroll County, AR?

Carroll County is in Zone 7a with an average last frost of April 14. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.

What planting zone is Carroll County, AR?

Carroll County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is April 14 and first fall frost is October 25.

When should I plant Arugula in Carroll County, AR?

In Carroll County, AR, plant Arugula after the last frost (around April 14) and before the first frost (around October 25). Best results when soil holds above 50°F.

What growing zone is Carroll County, AR for Arugula?

Carroll County sits in USDA Zone 7a. Arugula grows reliably in zones 3a through 11b, so it's a good fit here.

Can Arugula grow in Carroll County's climate?

Yes — Arugula grows well in Carroll County's temperate climate. Carroll County averages a 194-day frost-free season, with last frost around April 14 and first frost around October 25.

🌱

Your Carroll County Garden Planner — Free

A 22-page printable planner built for Carroll County (Zone 7a). 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 Carroll County, AR. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.