When to Plant Arugula in Monroe County, MS
Your May gardening checklist
Welcome to May in Zone 8a. These are the moves that will have the biggest impact on your growing season.
-
Start harvesting arugula
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
A few tasks this May that'll pay off in June
- First harvests: arugula
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.
Monroe County, Mississippi is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.
At an elevation of 448 feet, Monroe County receives approximately 54.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88°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.
Monroe County Soil Profile
Soil Type
Clay Loam
Soil pH
5.4-6.7
Drainage
Well Drained
Plant Planting Risk Windows
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 Monroe County
How your county's soil matches Arugula's growing requirements.
Soil pH
Your soil pH (5.4–6.7) overlaps with Arugula's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Monroe County is excellent for Arugula — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Arugula.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Arugula.
How to Plant Arugula
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Arugula
Sow every 3.4 weeks. Last sowing by Sep 17 to harvest before frost.
For a dedicated fall crop, sow by Aug 28.
Plant Water Budget
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 | — | 4.4" | 0" | ❄️ Dormant |
| Feb | — | 3.8" | 0" | ❄️ Dormant |
| Mar | 2.6" | 6" | 0" | ✅ Rainfall sufficient |
| Apr | 2.6" | 4.7" | 0" | ✅ Rainfall sufficient |
| May | 2.6" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jul | 2.6" | 5.2" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 4.6" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 4.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 3.5" | 0" | ✅ Rainfall sufficient |
| Nov | 2.6" | 3.9" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Monroe 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 Planting Timeline — Monroe County, MS
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 16 | Feb 16 – Mar 2 |
| Transplant Outdoors | March 23 | Mar 23 – Apr 6 |
| Direct Sow | March 9 | Mar 9 – Mar 30 |
| Harvest | April 27 | Apr 27 – Jun 29 |
| Fall Sowing | August 28 | Aug 28 – Sep 11 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| 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 8a
📆 Growing Season
228 days in Monroe County
Growing Tips for Arugula in Monroe County
Direct sow Arugula outdoors after March 23 in Monroe County when soil has warmed and frost danger has passed.
With Monroe County's clay soil (26% clay), work in 3-4 inches of compost before planting Arugula. Avoid tilling when soil is wet to prevent compaction.
Your generous 228.0-day season in Monroe 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
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Check more plant combinations with our Companion Planting Checker →
Arugula in Other Locations
Frequently Asked Questions
When should I plant Arugula in Monroe County, MS?
Monroe County is in Zone 8a with an average last frost of March 23. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Monroe County, MS?
Monroe County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 6.
Your Monroe County Garden Planner — Free
A 24-page printable planner built for Monroe County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.