North Dakota Planting Calendar

Frost dates, growing zones, and planting dates for North Dakota gardeners.

Zone 3a Zone 3b Zone 4a Zone 4b

The Short Answer

North Dakota spans USDA zones 3a through 4b, which means planting dates vary significantly across the state. Western North Dakota has an average last frost around May 15 - May 30, while Eastern North Dakota sees its last frost around May 10 - May 25. Use our homepage tool with your zip code for dates specific to your exact location.

North Dakota Frost Dates by Region

Very cold winters. Short but warm summers with long days. Wind protection very important for gardens.

Region	Zones	Last Frost (Spring)	First Frost (Fall)
Western North Dakota	3b, 4a	May 15 - May 30	Sep 10 - Sep 25
Eastern North Dakota	3a, 3b, 4a, 4b	May 10 - May 25	Sep 15 - Sep 30

Soil & Growing Conditions

Rich prairie soils — excellent for gardening. Alkaline in western regions. Heavy clay in Red River Valley.

What to Plant in North Dakota

North Dakota's short growing season rewards strategic planning. Cold-hardy crops are your strength, and warm-season crops need indoor starting. These are the best performers for North Dakota's climate:

Top Picks for North Dakota

Kale Garlic Potatoes Peas Carrots Lettuce Broccoli Beets Radishes Spinach Beans (Green/Snap)Cabbage Daffodils

Worth the Effort

With indoor starting and season extension, North Dakota gardeners also grow excellent tomatoes, peppers, cucumbers, and sunflowers. The long summer daylight hours drive faster growth than you'd expect:

Tomatoes Peppers Cucumbers Squash (Summer)Basil Sunflowers Zinnias Corn (Sweet)

Browse all 100 plants — or enter your zip code for personalized planting dates.

Neighboring States

Gardeners near state borders may find useful information in neighboring state guides:

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Note: Frost dates are based on NOAA 30-year Climate Normals and represent historical averages. Actual frost dates can vary significantly year to year. Zone data is from the USDA Plant Hardiness Zone Map.

Last reviewed: March 29, 2026