When to plant corn in Maryland
Sow outdoors in Baltimore
Mar 31–Apr 14
Across Maryland the window opens between March 31 and May 1. Find your city below; the dates follow each town's own average last frost.
- Sow outdoors, Baltimore
- Mar 31–Apr 14
- Last sowing for a harvest
- Jul 30
- Last frost, Baltimore
- Mar 24
Sow outdoors 1–3 weeks after the last frost. Plant in blocks of at least four rows rather than one long row. Corn is pollinated by wind.
Corn planting dates by city
Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost
JanFebMarAprMayJunJulAugSepOctNovDec
BaltimoreMar 31–Apr 14
ColumbiaApr 12–Apr 26
FrederickApr 9–Apr 23
GermantownApr 21–May 5
WaldorfApr 24–May 8
Silver SpringApr 17–May 1
Ellicott CityApr 9–Apr 23
Glen BurnieApr 17–May 1
GaithersburgApr 8–Apr 22
RockvilleApr 8–Apr 22
BethesdaApr 16–Apr 30
DundalkMar 31–Apr 14
BowieApr 29–May 13
SevernApr 17–May 1
Bel Air SouthApr 17–May 1
TowsonApr 9–Apr 23
Aspen HillApr 8–Apr 22
WheatonApr 8–Apr 22
North BethesdaApr 8–Apr 22
PotomacApr 8–Apr 22
OdentonApr 17–May 1
HagerstownApr 18–May 2
CatonsvilleMar 31–Apr 14
EssexMar 31–Apr 14
AnnapolisApr 3–Apr 17
Severna ParkApr 3–Apr 17
ClintonApr 10–Apr 24
OlneyApr 8–Apr 22
RandallstownApr 9–Apr 23
Owings MillsApr 9–Apr 23
All 68 cities
| City | Sow outdoors | Last frost |
|---|---|---|
| Baltimore | Mar 31 to Apr 14 | Mar 24 |
| Columbia | Apr 12 to Apr 26 | Apr 5 |
| Frederick | Apr 9 to Apr 23 | Apr 2 |
| Germantown | Apr 21 to May 5 | Apr 14 |
| Waldorf | Apr 24 to May 8 | Apr 17 |
| Silver Spring | Apr 17 to May 1 | Apr 10 |
| Ellicott City | Apr 9 to Apr 23 | Apr 2 |
| Glen Burnie | Apr 17 to May 1 | Apr 10 |
| Gaithersburg | Apr 8 to Apr 22 | Apr 1 |
| Rockville | Apr 8 to Apr 22 | Apr 1 |
| Bethesda | Apr 16 to Apr 30 | Apr 9 |
| Dundalk | Mar 31 to Apr 14 | Mar 24 |
| Bowie | Apr 29 to May 13 | Apr 22 |
| Severn | Apr 17 to May 1 | Apr 10 |
| Bel Air South | Apr 17 to May 1 | Apr 10 |
| Towson | Apr 9 to Apr 23 | Apr 2 |
| Aspen Hill | Apr 8 to Apr 22 | Apr 1 |
| Wheaton | Apr 8 to Apr 22 | Apr 1 |
| North Bethesda | Apr 8 to Apr 22 | Apr 1 |
| Potomac | Apr 8 to Apr 22 | Apr 1 |
| Odenton | Apr 17 to May 1 | Apr 10 |
| Hagerstown | Apr 18 to May 2 | Apr 11 |
| Catonsville | Mar 31 to Apr 14 | Mar 24 |
| Essex | Mar 31 to Apr 14 | Mar 24 |
| Annapolis | Apr 3 to Apr 17 | Mar 27 |
| Severna Park | Apr 3 to Apr 17 | Mar 27 |
| Clinton | Apr 10 to Apr 24 | Apr 3 |
| Olney | Apr 8 to Apr 22 | Apr 1 |
| Randallstown | Apr 9 to Apr 23 | Apr 2 |
| Owings Mills | Apr 9 to Apr 23 | Apr 2 |
| College Park | Apr 17 to May 1 | Apr 10 |
| Chillum | Apr 5 to Apr 19 | Mar 29 |
| Pikesville | Apr 9 to Apr 23 | Apr 2 |
| Montgomery Village | Apr 21 to May 5 | Apr 14 |
| Salisbury | Apr 10 to Apr 24 | Apr 3 |
| Pasadena | Apr 17 to May 1 | Apr 10 |
| Milford Mill | Apr 9 to Apr 23 | Apr 2 |
| Middle River | Mar 31 to Apr 14 | Mar 24 |
| Bel Air North | Apr 17 to May 1 | Apr 10 |
| Eldersburg | Apr 9 to Apr 23 | Apr 2 |
| Parkville | Apr 9 to Apr 23 | Apr 2 |
| Laurel | Apr 12 to Apr 26 | Apr 5 |
| Crofton | Apr 29 to May 13 | Apr 22 |
| Clarksburg | Apr 21 to May 5 | Apr 14 |
| Perry Hall | Apr 9 to Apr 23 | Apr 2 |
| Carney | Apr 9 to Apr 23 | Apr 2 |
| Reisterstown | Apr 9 to Apr 23 | Apr 2 |
| South Laurel | Apr 12 to Apr 26 | Apr 5 |
| Lochearn | Apr 9 to Apr 23 | Apr 2 |
| Ilchester | Apr 17 to May 1 | Apr 10 |
| Fairland | Apr 12 to Apr 26 | Apr 5 |
| Elkridge | Apr 17 to May 1 | Apr 10 |
| Ballenger Creek | Apr 9 to Apr 23 | Apr 2 |
| Fort Washington | Apr 10 to Apr 24 | Apr 3 |
| North Laurel | Apr 12 to Apr 26 | Apr 5 |
| Edgewood | Apr 17 to May 1 | Apr 10 |
| Greenbelt | Apr 17 to May 1 | Apr 10 |
| Suitland | Apr 5 to Apr 19 | Mar 29 |
| Landover | Apr 5 to Apr 19 | Mar 29 |
| North Potomac | Apr 8 to Apr 22 | Apr 1 |
| Arnold | Apr 3 to Apr 17 | Mar 27 |
| Cockeysville | Apr 9 to Apr 23 | Apr 2 |
| Camp Springs | Apr 10 to Apr 24 | Apr 3 |
| Langley Park | Apr 17 to May 1 | Apr 10 |
| Hyattsville | Apr 5 to Apr 19 | Mar 29 |
| Arbutus | Mar 31 to Apr 14 | Mar 24 |
| Rosedale | Mar 31 to Apr 14 | Mar 24 |
| Westminster | May 1 to May 15 | Apr 24 |
Questions
When should I plant corn in Maryland?
In Baltimore, sow outdoors from March 31 to April 14. Across Maryland the window opens between March 31 and May 1, depending on the local last frost.
How is this date worked out?
Sow outdoors 1–3 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.
More for Maryland
Tomatoes
Potatoes
Tulip bulbs
Garlic
Pumpkins
Strawberries
Onions
Carrots
Sunflowers
Cucumbers
Daffodil bulbs
Sweet potatoes
Asparagus
Watermelon
Lettuce
Green beans
Corn in other states
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming