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Corn planting and harvest datesCorn Planting Dates in Maryland
Usual corn planting and harvest periods in Maryland, shown as ranges with their source. Use them to frame a plan, then adjust for your own frost dates and soil temperature.
| Activity | Window | Source | Last verified |
|---|---|---|---|
| Planting | Apr 20 to Jun 7 usual (most active Apr 30 to May 20) | source | 2026-11-11 |
| Harvest | Sep 9 to Nov 17 usual (most active Sep 22 to Oct 22) | source | 2026-11-11 |
| Item | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Planting | Planting window, most active in April | Planting window, most active in May | Planting window in June | |||||||||
| Harvest | Harvest window, most active in September | Harvest window, most active in October | Harvest window in November |
What these dates mean in Maryland
Planting usually runs about 49 days, from Apr 20 to Jun 7.
That start date is about 6 days later than the middle of the 41 places in this data set that report corn planting dates (Apr 14).
Harvest usually runs about 70 days, from Sep 9 to Nov 17.
From the start of the planting window to the start of the harvest window is about 142 days in Maryland, a rough guide to how long the crop occupies the bed or field.
Related guides
- Corn (Sweet) Planting Calendar by Zone
- Corn Planting Calendar: Grain vs. Silage
- Corn Growth Stages and Calendar Timing
- Field Crop Planting Calendar for the Corn Belt
Corn dates in other places
- Alabama
- Arizona
- Arkansas
- California
- Colorado
- Delaware
- Florida
- Georgia
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Other crops in Maryland
Last reviewed: November 2026. Source: USDA NASS, Field Crops Usual Planting and Harvesting Dates (October 2010 edition, copy hosted by Cornell University Mann Library). Dates are the usual start and end of the period when about 5% to 95% of the crop is planted or harvested, from long-run state progress data. They are historic averages, not a forecast.