When to plant Arugula in Iosco County, MI
The best window to plant Arugula in Iosco County, is April 30–May 21, when soil warms to 50°F. Last frost typically hits May 14; first frost October 3. A second sowing from July 25 to August 8 extends the harvest into fall.
When to Plant Arugula in Iosco 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.
Iosco County, Michigan is in USDA Zone 5b. The average last spring frost is May 14 and the first fall frost is October 3, giving you a growing season of approximately 142 days.
At an elevation of 696 feet, Iosco County receives approximately 37.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Arugula during the growing season.
Iosco County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Arugula Planting Timeline — Iosco County, MI
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 9 | Apr 9 – Apr 23 |
| Transplant Outdoors | May 14 | May 14 – May 28 |
| Direct Sow | April 30 | Apr 30 – May 21 |
| Harvest | June 18 | Jun 18 – Aug 20 |
| Fall Sowing | July 25 | Jul 25 – Aug 8 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Fall Sowing 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 5b
📆 Growing Season
142 days in Iosco County
Growing Tips for Iosco 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
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Arugula in Other Locations
Frequently Asked Questions
When should I plant Arugula in Iosco County, MI?
Iosco County is in Zone 5b with an average last frost of May 14. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Iosco County, MI?
Iosco County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 14 and first fall frost is October 3.
When should I plant Arugula in Iosco County, MI?
In Iosco County, MI, plant Arugula after the last frost (around May 14) and before the first frost (around October 3). Best results when soil holds above 50°F.
What growing zone is Iosco County, MI for Arugula?
Iosco County sits in USDA Zone 5b. Arugula grows reliably in zones 3a through 11b, so it's a good fit here.
Can Arugula grow in Iosco County's climate?
Yes — Arugula grows well in Iosco County's temperate climate. Iosco County averages a 142-day frost-free season, with last frost around May 14 and first frost around October 3.
Your Iosco County Garden Planner — Free
A 22-page printable planner built for Iosco County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.