Citation styles used in Horticulture vary, and may include those for a particular journal. EndNote Basic supplies a number of styles that may be appropriate. Zotero is a free resource that does similar work.
This link opens in a new windowEndNote Basic is available through Web of Science and is available to U of A faculty, staff and students. It allows you to save citations to a personal database and then format those citations in footnotes, end notes, or bibliographies. Register with your UARK email to get started.
Zotero is one of the free citation managers that are commonly used in academic circles; we don't have formalized support for it, but they have help pages and your librarian may be using one or more of them.
