When to plant Arugula in Marshall County County,
Plant Arugula in Marshall County County, when soil hits 50°F — usually March 20. Continue planting through April 10 for the spring crop. A second sowing from August 23 to September 6 extends the harvest into fall.
When to Plant Arugula in Marshall County, KY
Top priorities for Marshall County, Kentucky gardeners in June
Each item below is timed to Marshall County, Kentucky's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Basket week: arugula
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Looking ahead to July
- 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.
Marshall County, Kentucky is in USDA Zone 7a. The average last spring frost is April 3 and the first fall frost is November 1, giving you a growing season of approximately 212 days.
At an elevation of 1,550 feet, Marshall County receives approximately 42.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Arugula during the growing season.
Marshall County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-7.1
Drainage
Well Drained
Arugula 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 Marshall County
How your county's soil matches Arugula's growing requirements.
Soil pH
Your soil pH (5.5–7.1) overlaps with Arugula's range (6.0–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Marshall County is excellent for Arugula — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.5%). 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 12 to harvest before frost.
For a dedicated fall crop, sow by Aug 23.
Arugula Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
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 | — | 3.6" | 0" | ❄️ Dormant |
| Feb | — | 4" | 0" | ❄️ Dormant |
| Mar | — | 4" | 0" | ❄️ Dormant |
| Apr | 2.6" | 2.9" | 0" | ✅ Rainfall sufficient |
| May | 2.6" | 3.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 3.6" | 0" | ✅ Rainfall sufficient |
| Jul | 2.6" | 5" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 3.5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 2.8" | 0" | ✅ Rainfall sufficient |
| Nov | 2.6" | 3" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Marshall 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 — Marshall County, KY
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 27 | Feb 27 – Mar 13 |
| Transplant Outdoors | April 3 | Apr 3 – Apr 17 |
| Direct Sow | March 20 | Mar 20 – Apr 10 |
| Harvest | May 8 | May 8 – Jul 10 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| 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 7a
📆 Growing Season
212 days in Marshall County
Growing Tips for Arugula in Marshall County
Direct sow Arugula outdoors after April 03 in Marshall County when soil has warmed and frost danger has passed.
Your generous 212.0-day season in Marshall 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
Check more plant combinations with our Companion Planting Checker →
Arugula in Other Locations
Frequently Asked Questions
When should I plant Arugula in Marshall County, KY?
Marshall County is in Zone 7a with an average last frost of April 3. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marshall County, KY?
Marshall County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 3 and first fall frost is November 1.
When should I plant Arugula in Marshall County County, ?
In Marshall County County, , plant Arugula after the last frost (around April 3) and before the first frost (around November 1). Best results when soil holds above 50°F.
What growing zone is Marshall County County, for Arugula?
Marshall County 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 Marshall County County's climate?
Yes — Arugula grows well in Marshall County County's temperate climate. Marshall County County averages a 212-day frost-free season, with last frost around April 3 and first frost around November 1.
Your Marshall County Garden Planner — Free
A 22-page printable planner built for Marshall 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.