When to plant Leeks in Antrim County, MI
For Leeks in Antrim County, the safe spring window opens around April 24 and closes around May 15. Last expected frost is May 8, first fall frost October 13, giving a 158-day growing season. A second sowing from August 4 to August 18 extends the harvest into fall.
When to Plant Leeks in Antrim County, MI
Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.
Antrim County, Michigan is in USDA Zone 5b. The average last spring frost is May 8 and the first fall frost is October 13, giving you a growing season of approximately 158 days.
At an elevation of 1,039 feet, Antrim County receives approximately 34.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Leeks to ensure they mature before fall.
Antrim County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Leeks Planting Timeline — Antrim County, MI
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 3 | Apr 3 – Apr 17 |
| Transplant Outdoors | May 8 | May 8 – May 22 |
| Direct Sow | April 24 | Apr 24 – May 15 |
| Harvest | August 7 | Aug 7 – Oct 23 |
| Fall Sowing | August 4 | Aug 4 – Aug 18 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | — |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
90–150 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
158 days in Antrim County
Growing Tips for Antrim County
Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Leeks in Other Locations
Frequently Asked Questions
When should I plant Leeks in Antrim County, MI?
Antrim County is in Zone 5b with an average last frost of May 8. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Antrim County, MI?
Antrim County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 8 and first fall frost is October 13.
When should I plant Leeks in Antrim County, MI?
In Antrim County, MI, plant Leeks after the last frost (around May 8) and before the first frost (around October 13). Best results when soil holds above 50°F.
What growing zone is Antrim County, MI for Leeks?
Antrim County sits in USDA Zone 5b. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Antrim County's climate?
Yes — Leeks grows well in Antrim County's temperate climate. Antrim County averages a 158-day frost-free season, with last frost around May 8 and first frost around October 13.
Your Antrim County Garden Planner — Free
A 22-page printable planner built for Antrim 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.