A new director for the Dubuque Arboretum & Botanical Gardens will take over the job next week. In a release from the arboretum’s board of directors, Jenna Hirtz has accepted the position. She has previously worked in the City of Dubuque’s Finance Department. Hirtz is also working to finish a Masters of Business Administration degree at the University of Dubuque. She replaces Sandi Helgerson, who retired from the director’s role last month.















