When to Plant Corn in Lamoille County, VT
Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.
Lamoille County, Vermont is in USDA Zone 4a. The average last spring frost is May 8 and the first fall frost is October 6, giving you a growing season of approximately 151 days.
At an elevation of 823 feet, Lamoille County receives approximately 46.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Corn to ensure they mature before fall.
Lamoille County Soil Profile
Soil Type
Silt Loam
Soil pH
4.9-6.4
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Corn Planting Timeline — Lamoille County, VT
Corn Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 22 | May 22 – Jun 12 |
| Harvest | July 24 | Jul 24 – Sep 18 |
Plant 1" deep · 12" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | Direct Sow |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
60–100 days
Soil pH
6 – 7
USDA Zone
Zone 4a
Growing Season
151 days
Growing Tips for Lamoille County
Plant in blocks of at least 4 rows rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Corn in Other Locations
Frequently Asked Questions
When should I plant Corn in Lamoille County, VT?
Lamoille County is in Zone 4a with an average last frost of May 8. Plan your Corn planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lamoille County, VT?
Lamoille County, Vermont is in USDA Hardiness Zone 4a. The average last spring frost is May 8 and first fall frost is October 6.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Lamoille County gardeners in Zone 4a organize planting dates, track what's growing, and never miss a planting window.
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