Orange grove.

Doctor of Philosophy in Horticulture

The Doctor of Philosophy in Horticulture program develops a horticulture graduate student into a professional horticulturist on the highest plane. The Ph.D. is the highest earned degree offered by universities. It is only conferred for independent work of distinction in which the student displays original scholarship of marked ability and achievement. The Ph.D. program aims to:

  • Provide an opportunity for advanced study and specialization in horticulture
  • Assist the student in developing proficiency in independent scientific investigation
  • Allow the student to rigorously acquire and develop new knowledge, technical skills, communication skills, and creative problem-solving capabilities that enable them to conduct advanced research in horticulture.
  • The Ph.D. program requires that the student conducts an independent research investigation, reports the results in both a written dissertation and a peer reviewed publication, and defends the dissertation in a final oral exam, or defense.

Visit the Graduate Studies in Horticulture page on for more details

Browse Program of Study

Where You’ll Find Us

Plants in a greenhouse

CSU Horticulture Center

A center for teaching, research and extension for horticulture and landscape programs.

Teaching at ARDEC.

Agricultural Research and Development Center

Work directly with crops and livestock at this research and teaching complex — one of nine around the state.

Learn More about ARDEC

Field of flowers

Annual Flower Garden Trials

One of the top tourist attractions in Fort Collins. Explore more than 1,000 varieties at this campus flower garden.

Visit the Flower Trials Website

Orange divider line

Related Interests

  • Agriculture
  • Business Management
  • Floriculture
  • Food Crops
  • Plants
  • Science
Career Icon
Orange divider line

 Related Careers

  • Biotechnologist
  • Extension Specialist
  • Floriculturist
  • Fruit and Vegetable Producer
  • Greenhouse Production Specialist
  • Horticultural Therapist
  • Plant Breeder

Graduate Student Program Contacts

Please reach out with questions about our graduate programs.

Jessica Prenni

Jessica Prenni

Graduate Program Faculty Chair

Karen Allison

Karen Allison

Graduate Program Coordinator