Perennial Flower

When to Plant Black-Eyed Susans in North Dakota

Cheerful golden blooms that attract butterflies and tolerate drought. A backbone of the low-maintenance perennial garden.

The Short Answer

In North Dakota, plant black-eyed susans based on your regional frost dates. Western North Dakota has a last frost around May 15 - May 30, while Eastern North Dakota sees frost end around May 10 - May 25. Very cold winters. Short but warm summers with long days. Wind protection very important for gardens.

North Dakota Frost Dates

Your planting dates depend on which part of North Dakota you're in. Here are the frost date ranges by region:

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

Black-Eyed Susans Planting Schedule for North Dakota

Western North Dakota (Zones 3b, 4a)

Average last frost: May 15 - May 30 · Average first frost: Sep 10 - Sep 25

Start Seeds Indoors
6 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Eastern North Dakota (Zones 3a, 3b, 4a, 4b)

Average last frost: May 10 - May 25 · Average first frost: Sep 15 - Sep 30

Start Seeds Indoors
6 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Growing Black-Eyed Susans in North Dakota

Black-Eyed Susans in North Dakota's Climate

Black-eyed Susans are native wildflowers that thrive in cold-climate conditions. Plant divisions or nursery plants from spring through early fall. They handle poor soil, drought once established, and cold winters without complaint. Leave seed heads standing through winter for bird food and visual interest.

Soil Considerations for North Dakota

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

North Dakota Climate & Growing Season

Very cold winters. Short but warm summers with long days. Wind protection very important for gardens. Black-Eyed Susans can handle frost well, which is an advantage in North Dakota's climate. You can push planting dates earlier in spring and extend into fall.

Growing season length varies across North Dakota: Western North Dakota (3b, 4a) has a last frost around May 15 - May 30, while Eastern North Dakota (3a, 3b, 4a, 4b) sees frost end around May 10 - May 25. This difference matters for black-eyed susans — but black-eyed susans handle frost well, so the timing difference is less critical.

Growing Tips

Leave seed heads standing through winter for birds and visual interest. Self-seeds freely — deadhead if you don't want more.

Companion Planting

Plant black-eyed susans alongside these companions for better growth:

Coneflowers Ornamental Grasses

The Bottom Line

Black-Eyed Susans can be grown successfully across North Dakota, but your exact planting dates depend on which region you're in. Western North Dakota gardeners should plan around a May 15 - May 30 last frost, while those in Eastern North Dakota can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Black-Eyed Susans Growing Guide National planting guide with all states North Dakota Planting Calendar All plants for North Dakota Black-Eyed Susans in Alabama Alabama planting dates Black-Eyed Susans in Alaska Alaska planting dates Black-Eyed Susans in Arizona Arizona planting dates Black-Eyed Susans in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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