NC State & AG*IDEA Courses That Meet AHTA Requirements

Courses that meet the American Horticulture Therapy Association’s academic requirements.

A total of twelve (12) semester credits are required. Three core required courses and a minimum of three (3) semester credits in one individual subject area.

These courses can be taken through NC State University as a non-degree studies student (NDS) or through AG*IDEA. AG*IDEA is a consortium of universities that share online course content. See this page for how to get enrolled in an AG*IDEA course.  NC State Course Descriptions.

Core Requirements:


  • Introduction to horticulture

    • NC State course: HS 201, World of Horticulture
      • Offered online in the Fall and 10-week Summer semester
      • Offered face to face in the Fall and Spring semesters
  • Plant propagation

    • NC State course: HS 203, Home Plant Propagation
      • Offered online in the Spring semesters
  • Pest and disease plant management

    • NC State course: ENT 212, Basic Entomology
      • Offered online in the Spring
    •  AG*IDEA Course:  Introduction to Entomology
      • Offered online in the Spring and Fall semesters
    • Possibly AG*IDEA Course: Management of Horticulture Insects
      • Offered online in the Spring semester
    • Possibly AG*IDEA Course: Entomology and Pest Management
      • Offered online in the Summer semester
    • Possibly AG*IDEA Course: Biological Control of Pests
      • Offered online in the Spring semester

Individual subject area -


a minimum of three (3) semester credits:


  • General plant pathology

    • NC State course: HS 315, Principles of Plant Pathology
      • Offered face to face in the Fall semester
    • AG*IDEA Course: Plant Pathology
      • Offered online in the Spring semester
  • Greenhouse production/management

    • AG*IDEA Course: Advanced Greenhouse Crop Production
      • Offered online in the Spring semesters
  • Nursery production/management

    • NC State course: HS 550 Environmental Nursery Production
      • This is a graduate-level course.  An undergraduate, plant science-related degree is required to take this class
      • Offered in the Fall semester of odd years.
  • Landscape design

    • NC State Course: HS 250, Home Landscape Design
      • Offered online in the Summer II semester
  • Floral Design

    • NC State courses,
      • 2022 HS 495-007 (2 hr credit), 8 weeks 10/14-11/2, Fridays 1:30-4:15)
      • 2023 HS 275-001 (3 hr credit) Fall Semester, Fridays 1:30-4:15)
  • Plant materials

    • NC State Course: HS 202, Home Plant Identification
      • Offered online in the Fall semester
    • AG*IDEA Course: Herbaceous Plants
      • Offered online in the Fall semester
  • Soils

    • NC State Course: HS 200, Soil Science
      • Offered online in the Fall and Spring semesters

This list was compiled by Dr. Helen Kraus, Director of Undergraduate Training, NC State Department of Horticultural Science, March 30, 2022