When to plant Leeks in Cumberland County, ME
Cumberland County's climate puts the Leeks spring window between April 15 and May 6. time plantings around the expected last-frost window for best survival. A second sowing from August 4 to August 18 extends the harvest into fall.
When to Plant Leeks in Cumberland County, ME
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.
Cumberland County, Maine is in USDA Zone 6a. The average last spring frost is April 29 and the first fall frost is October 13, giving you a growing season of approximately 167 days.
At an elevation of 405 feet, Cumberland County receives approximately 42.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Leeks during the growing season.
Cumberland County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Leeks Planting Timeline — Cumberland County, ME
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | April 29 | Apr 29 – May 13 |
| Direct Sow | April 15 | Apr 15 – May 6 |
| Harvest | July 29 | Jul 29 – Oct 14 |
| 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 | Start Indoors |
| April | Start Indoors Transplant Outdoors 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
167 days in Cumberland County
Growing Tips for Cumberland 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
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Leeks in Other Locations
Frequently Asked Questions
When should I plant Leeks in Cumberland County, ME?
Cumberland County is in Zone 6a with an average last frost of April 29. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cumberland County, ME?
Cumberland County, Maine is in USDA Hardiness Zone 6a. The average last spring frost is April 29 and first fall frost is October 13.
When should I plant Leeks in Cumberland County, ME?
In Cumberland County, ME, plant Leeks after the last frost (around April 29) and before the first frost (around October 13). Best results when soil holds above 50°F.
What growing zone is Cumberland County, ME for Leeks?
Cumberland 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 Cumberland County's climate?
Yes — Leeks grows well in Cumberland County's temperate climate. Cumberland County averages a 167-day frost-free season, with last frost around April 29 and first frost around October 13.
Your Cumberland County Garden Planner — Free
A 22-page printable planner built for Cumberland 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.