In the following years the overall maintenance of the park became too expensive for the "Vereniging tot aanleg van een rij- en wandelpark" (English: "Association for the creation of a park for riding and strolling"), due to an intensified use, and in 1953 the association donated the park to the city of Amsterdam. The landscape architect Egbert Mos renovated the Vondelpark for the city in the 1950s. The purpose was improve the park for both usage and maintenance. Small bushes were grouped into larger bushes, superfluous paths were removed, and the rose garden was renovated. Also the stream of water in the "trunk" near the northern entrance of the park was removed.