[3] The slogan Peace Garden State originates from the International Peace Garden, and was added to vehicle registration plates of North Dakota in 1956, In the next year, the North Dakota Legislative Assembly made the slogan an official state nickname.

Some building remains of the World Trade Center attacks of September 11, 2001, have been placed in part of the garden.

The officers, ritual and program are rotated each year between the Grand Lodges of Manitoba, North Dakota, Minnesota, and Saskatchewan.

[9] The park lies near the center of the Turtle Mountain plateau, whose climate, topography, wildlife, and natural vegetation differ considerably from the surrounding prairies.

[1] During the COVID-19 pandemic of 2020–21, the garden was closed in April 2020;[10] it reopened in May the same year, but with Canadian visitors subject to two weeks quarantine on return to their own country.