The park dates back to the horticultural show of 1939. Before the show, a large area of the park had been a quarry. Horticultural events on a regular basis, including the "Federal Garden Show" and the IGA (International Horticultural Exhibition), both garden festivals.
The Killesbergpark bordered for many years the city's fairgrounds. In 2007, Messe Stuttgart moved to new ground close to Stuttgart Airport.
Every July the park hosts the popular Festival of Lights Stuttgart. Thousands of lanterns are set around the park, decorating the park for a variety of family activities throughout. After dark, there is a firework show accompanied by music. Visitors often bring blankets to sit on the show.