The park also has an experimental section where new varieties of roses are tested for their suitability for public and private gardens in Italy.
In this site, near the Roman Ghetto, since 1645 until 1934 was in place the Jewish cemetery in Rome.
Because of that, the site was named by the Roman people "Ortaccio degli ebrei" (English: garden of the Jews).
To remember the past of the garden, the ensemble of its footpaths was designed as a reproduction of the Menorah.
The original design for the park was drawn up in 1931 by countess Mary Gayley Senni, with 300 roses.