While horticultural therapy (HT) has a long history in the United States, the profession has not had the acceptance and growth that related fields, such as art, music, recreational, occupational, and physical therapies have experienced. The objective of this study was to identify the current challenges and opportunities of HT in the United States. Maximum variation sampling was used to select current and former members of the American Horticultural Therapy Association (AHTA) for interviews. A total of 27 participants were interviewed between Nov. 2019 and Jan. 2020 using semi-structured qualitative interviews by Zoom. The interviews revealed six themes: 1) current state of the profession, 2) AHTA operations/structure, 3) education/credentialing, 4) funding/job opportunities, 5) public awareness/networking, and 6) research. This paper will discuss the challenges and opportunities presented in the six themes and provide recommendations for the future growth of the HT profession.