When to plant Arugula in Calloway County, KY
Plant Arugula in Calloway County after April 5; the prime window is March 22–April 12. A second sowing from August 20 to September 3 extends the harvest into fall.
When to Plant Arugula in Calloway County, KY
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.
Calloway County, Kentucky is in USDA Zone 7b. The average last spring frost is April 5 and the first fall frost is October 29, giving you a growing season of approximately 207 days.
At an elevation of 2,755 feet, Calloway County receives approximately 42 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Arugula during the growing season.
Calloway County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.9
Drainage
Well Drained
Monthly Watering Guide for Arugula
Arugula needs approximately 1 inches of water per week (4.3" 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 | — | 3.2" | 0" | ❄️ Dormant |
| Mar | — | 3.9" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| May | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Jun | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Jul | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Aug | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Sep | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Oct | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Nov | — | 3.4" | 0" | ❄️ Dormant |
| Dec | — | 3.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Calloway County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Arugula Planting Timeline — Calloway County, KY
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 1 | Mar 1 – Mar 15 |
| Transplant Outdoors | April 5 | Apr 5 – Apr 19 |
| Direct Sow | March 22 | Mar 22 – Apr 12 |
| Harvest | May 10 | May 10 – Jul 12 |
| Fall Sowing | August 20 | Aug 20 – Sep 3 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| 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
Moderate — regular watering
📅 Days to Maturity
30–50 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 7b
📆 Growing Season
207 days in Calloway County
Growing Tips for Calloway County
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 Calloway County, KY?
Calloway County is in Zone 7b with an average last frost of April 5. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Calloway County, KY?
Calloway County, Kentucky is in USDA Hardiness Zone 7b. The average last spring frost is April 5 and first fall frost is October 29.
When should I plant Arugula in Calloway County, KY?
In Calloway County, KY, plant Arugula after the last frost (around April 5) and before the first frost (around October 29). Best results when soil holds above 50°F.
What growing zone is Calloway County, KY for Arugula?
Calloway 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 Calloway County's climate?
Yes — Arugula grows well in Calloway County's temperate climate. Calloway County averages a 207-day frost-free season, with last frost around April 5 and first frost around October 29.
Your Calloway County Garden Planner — Free
A 22-page printable planner built for Calloway 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.