When to plant Leeks in Massac County, IL
Plant Leeks in Massac County from March 24 to April 14 in spring. Massac County sits in USDA Zone 7a, with last frost around April 7 and first frost on October 21. A second sowing from August 12 to August 26 extends the harvest into fall.
When to Plant Leeks in Massac County, IL
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.
Massac County, Illinois is in USDA Zone 7a. The average last spring frost is April 7 and the first fall frost is October 21, giving you a growing season of approximately 197 days.
At an elevation of 778 feet, Massac County receives approximately 36 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Leeks during the growing season.
Massac County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Leeks Planting Timeline — Massac County, IL
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 3 | Mar 3 – Mar 17 |
| Transplant Outdoors | April 7 | Apr 7 – Apr 21 |
| Direct Sow | March 24 | Mar 24 – Apr 14 |
| Harvest | July 7 | Jul 7 – Sep 22 |
| Fall Sowing | August 12 | Aug 12 – Aug 26 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| 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 7a
📆 Growing Season
197 days in Massac County
Growing Tips for Massac 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
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Leeks in Other Locations
Frequently Asked Questions
When should I plant Leeks in Massac County, IL?
Massac County is in Zone 7a with an average last frost of April 7. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Massac County, IL?
Massac County, Illinois is in USDA Hardiness Zone 7a. The average last spring frost is April 7 and first fall frost is October 21.
When should I plant Leeks in Massac County, IL?
In Massac County, IL, plant Leeks after the last frost (around April 7) and before the first frost (around October 21). Best results when soil holds above 50°F.
What growing zone is Massac County, IL for Leeks?
Massac County sits in USDA Zone 7a. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Massac County's climate?
Yes — Leeks grows well in Massac County's temperate climate. Massac County averages a 197-day frost-free season, with last frost around April 7 and first frost around October 21.
Your Massac County Garden Planner — Free
A 22-page printable planner built for Massac County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.