Offers short courses, diploma courses, and distance learning courses on gardening involving a wide variety of subjects.

The University of Connecticut offers an educational outreach program that includes gardening, home and garden fact sheets, and soil test facts, and soil test information.

Proffers a home study course for garden design. Prospectus and enrolment guidelines included.

Serves the needs and interests of those who seek to become horticulturists. Provides full-time practicing horticulturalist tutors.

Comprehensive basic gardening training from the Oregon State University Extended Campus.

University of Nebraska-Lincoln's research-based volunteer training horticulture program.

Provides continuing education, school and teacher programs, and courses for professional horticulture.