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When to plant Arugula in Franklin County, AL

Arugula planted in Franklin County between March 11 and April 1 matures in 30–50 days — well before the November 3 first frost. A second sowing from August 25 to September 8 extends the harvest into fall.

When to Plant Arugula in Franklin County, AL

Franklin County, Alabama Zone 7b June

What to do in June

We've pulled the most time-sensitive tasks for Franklin County, Alabama this June and put them front and centre. Tackle them in order.

Avg. last frost March 25
Avg. first frost November 3
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 14.3 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.

To set up a strong July, finish these tasks
  • 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.

Franklin County, Alabama is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 3, giving you a growing season of approximately 223 days.

At an elevation of 105 feet, Franklin County receives approximately 56.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Arugula root diseases.

Franklin County, AL (Zone 7b) Long season
223 days
Last Spring Frost March 25
223 growing days
First Fall Frost November 3

Franklin County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Arugula Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: Apr 21 – Jun 23
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: Apr 29 – Jul 1
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: May 20 – Jul 22

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 Franklin County

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

Soil pH

Your soil pH (5.7–6.6) overlaps with Arugula's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). 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 223-day season

Sow every 3.4 weeks. Last sowing by Sep 14 to harvest before frost.

For a dedicated fall crop, sow by Aug 25.

Arugula Water Budget

Plant needs
0.6″/week
Rainfall provides
1.1″/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 5.2" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 2.6" 5.1" 0" ✅ Rainfall sufficient
Apr 2.6" 4.6" 0" ✅ Rainfall sufficient
May 2.6" 4.1" 0" ✅ Rainfall sufficient
Jun 2.6" 5.3" 0" ✅ Rainfall sufficient
Jul 2.6" 5.8" 0" ✅ Rainfall sufficient
Aug 2.6" 5.1" 0" ✅ Rainfall sufficient
Sep 2.6" 4.2" 0" ✅ Rainfall sufficient
Oct 2.6" 3.6" 0" ✅ Rainfall sufficient
Nov 2.6" 4.8" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Franklin 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 ~670 GDD — county provides 3,735 GDD Excellent fit

Arugula Planting Timeline — Franklin County, AL

Arugula Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 11 Mar 11 – Apr 1
Harvest April 29 Apr 29 – Jul 1
Fall Sowing August 25 Aug 25 – Sep 8

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow Harvest
May Harvest
June Harvest
July Harvest
August Fall Sowing
September Fall Sowing
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 7b

📆 Growing Season

223 days in Franklin County

Growing Tips for Arugula in Franklin County

Direct sow Arugula outdoors after March 25 in Franklin County when soil has warmed and frost danger has passed.

With Franklin County's clay soil (28% clay), work in 3-4 inches of compost before planting Arugula. Avoid tilling when soil is wet to prevent compaction.

Your generous 223.0-day season in Franklin 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 Franklin County, AL?

Franklin County is in Zone 7b with an average last frost of March 25. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, AL?

Franklin County, Alabama is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 3.

When should I plant Arugula in Franklin County, AL?

In Franklin County, AL, plant Arugula after the last frost (around March 25) and before the first frost (around November 3). Best results when soil holds above 50°F.

What growing zone is Franklin County, AL for Arugula?

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

Can Arugula grow in Franklin County's climate?

Yes — Arugula grows well in Franklin County's temperate climate. Franklin County averages a 223-day frost-free season, with last frost around March 25 and first frost around November 3.

🌱

Your Franklin County Garden Planner — Free

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

Sources & credits

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