When to plant Sweet Corn in Carroll County, MO
Carroll County gardeners should plant Sweet Corn between April 20 and May 11 in spring. With Carroll County's Zone 6a climate (last frost April 13), Sweet Corn needs 60–90 days to mature — plant by July 26 for a full harvest.
When to Plant Sweet Corn in Carroll County, MO
Sweet corn is bred for high sugar content in its kernels, which convert to starch rapidly after harvest. Modern supersweet varieties hold their sweetness longer.
Carroll County, Missouri is in USDA Zone 6a. The average last spring frost is April 13 and the first fall frost is October 24, giving you a growing season of approximately 194 days.
At an elevation of 1,053 feet, Carroll County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Sweet Corn during the growing season.
Carroll County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Sweet Corn Planting Timeline — Carroll County, MO
Sweet Corn Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 20 | Apr 20 – May 11 |
| Harvest | June 22 | Jun 22 – Aug 3 |
Plant 1" deep · 12" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
194 days in Carroll County
Growing Tips for Carroll County
Plant in blocks of at least 4 rows for wind pollination. Direct sow after soil is warm. Isolate supersweet varieties from other corn types to prevent cross-pollination.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Sweet Corn in Other Locations
Frequently Asked Questions
When should I plant Sweet Corn in Carroll County, MO?
Carroll County is in Zone 6a with an average last frost of April 13. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.
What planting zone is Carroll County, MO?
Carroll County, Missouri is in USDA Hardiness Zone 6a. The average last spring frost is April 13 and first fall frost is October 24.
When should I plant Sweet Corn in Carroll County, MO?
In Carroll County, MO, plant Sweet Corn after the last frost (around April 13) and before the first frost (around October 24). Best results when soil holds above 50°F.
What growing zone is Carroll County, MO for Sweet Corn?
Carroll County sits in USDA Zone 6a. Sweet Corn grows reliably in zones 3a through 11b, so it's a good fit here.
Can Sweet Corn grow in Carroll County's climate?
Yes — Sweet Corn grows well in Carroll County's temperate climate. Carroll County averages a 194-day frost-free season, with last frost around April 13 and first frost around October 24.
Your Carroll County Garden Planner — Free
A 22-page printable planner built for Carroll 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.