When to plant Arugula in Sanilac County, MI
For Sanilac County, gardeners: plant Arugula April 20 through May 11 once soil reads 50°F. A second sowing from August 8 to August 22 extends the harvest into fall.
When to Plant Arugula in Sanilac County, MI
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.
Sanilac County, Michigan is in USDA Zone 6a. The average last spring frost is May 4 and the first fall frost is October 17, giving you a growing season of approximately 166 days.
At an elevation of 985 feet, Sanilac County receives approximately 37 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Arugula during the growing season.
Sanilac County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Arugula Planting Timeline — Sanilac County, MI
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 30 | Mar 30 – Apr 13 |
| Transplant Outdoors | May 4 | May 4 – May 18 |
| Direct Sow | April 20 | Apr 20 – May 11 |
| Harvest | June 8 | Jun 8 – Aug 10 |
| Fall Sowing | August 8 | Aug 8 – Aug 22 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| 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 6a
📆 Growing Season
166 days in Sanilac County
Growing Tips for Sanilac 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 Sanilac County, MI?
Sanilac County is in Zone 6a with an average last frost of May 4. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sanilac County, MI?
Sanilac County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is May 4 and first fall frost is October 17.
When should I plant Arugula in Sanilac County, MI?
In Sanilac County, MI, plant Arugula after the last frost (around May 4) and before the first frost (around October 17). Best results when soil holds above 50°F.
What growing zone is Sanilac County, MI for Arugula?
Sanilac County sits in USDA Zone 6a. Arugula grows reliably in zones 3a through 11b, so it's a good fit here.
Can Arugula grow in Sanilac County's climate?
Yes — Arugula grows well in Sanilac County's temperate climate. Sanilac County averages a 166-day frost-free season, with last frost around May 4 and first frost around October 17.
Your Sanilac County Garden Planner — Free
A 22-page printable planner built for Sanilac County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.