This report provides results of Phase I of a project that researched the occupational area of environmental horticulture, established appropriate committees, and conducted task verification. These results are intended to guide development of a program designed to address the needs of the horticulture field. Section 1 contains general information: purpose of Phase I; description of the occupation, including nature of work, working conditions, and related occupations; direction of the occupation, including employment, training and other qualifications, advancement, job outlook, and earnings; program development committee; areas of concern; and State Technical Committee developmental recommendations. Section 2 presents research findings: accreditation and certification; appropriate trade resources and sources, including references and textbooks, professional organizations, and sources of additional information; and typical job titles. An occupational duty and task list is comprised of seven duties: performing administrative functions, preparing soil and growing media, propagating horticultural plants, growing plants, performing equipment/structure maintenance operations, harvesting plants, and performing sales. Other contents include a tools and equipment list and staff and facilities recommendations. (YLB)