When to plant Leeks in Ionia County, MI
Leeks planted in Ionia County between April 17 and May 8 matures in 90–150 days — well before the October 10 first frost. A second sowing from August 1 to August 15 extends the harvest into fall.
When to Plant Leeks in Ionia 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.
Ionia County, Michigan is in USDA Zone 6a. The average last spring frost is May 1 and the first fall frost is October 10, giving you a growing season of approximately 162 days.
At an elevation of 705 feet, Ionia County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Leeks during the growing season.
Ionia County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Leeks Planting Timeline — Ionia County, MI
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 27 | Mar 27 – Apr 10 |
| Transplant Outdoors | May 1 | May 1 – May 15 |
| Direct Sow | April 17 | Apr 17 – May 8 |
| Harvest | July 31 | Jul 31 – Oct 16 |
| Fall Sowing | August 1 | Aug 1 – Aug 15 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| 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 6a
📆 Growing Season
162 days in Ionia County
Growing Tips for Ionia 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 Ionia County, MI?
Ionia County is in Zone 6a with an average last frost of May 1. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Ionia County, MI?
Ionia County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is May 1 and first fall frost is October 10.
When should I plant Leeks in Ionia County, MI?
In Ionia County, MI, plant Leeks after the last frost (around May 1) and before the first frost (around October 10). Best results when soil holds above 50°F.
What growing zone is Ionia County, MI for Leeks?
Ionia County sits in USDA Zone 6a. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Ionia County's climate?
Yes — Leeks grows well in Ionia County's temperate climate. Ionia County averages a 162-day frost-free season, with last frost around May 1 and first frost around October 10.
Your Ionia County Garden Planner — Free
A 22-page printable planner built for Ionia 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.