Horticulture therapy treatment may be done as an intervention, as a medical treatment, to support cognitive development, or as part of a social science effort. The primary qualifications include the completion of a horticulture therapy certificate program. Many employers prefer applicants who also have a postsecondary degree in a relevant field as well as horticultural experience. Experience is valuable in this field, so the more time you spend in horticulture, the more likely you are to stand out from other applicants. Fulfilling the responsibilities of this job requires critical thinking and communication skills.