Horticulture may focus on the study of all types of plants. However, this field of study can also include garden design, arboriculture, and soil management. With this knowledge and understanding, horticulturists may consider going into all kind of careers including marketing, teaching or sales.

Graduate diplomas are typically not offered in the United States. The American equivalent of a diploma is referred to as a professional certification. Each university has a different set of requirements for admission, so students should perform in-depth research on programs before applying.