This curriculum guide consists of 14 units for use in teaching a high school level horticulture course. Covered in the individual units are the following topics: opportunities in horticultural occupations; plant classification and identification; structures and equipment used in producing greenhouse, ornamental, and nursery plants; greenhouse environment; soils and plant growth and development; propagation of plants; growing greenhouse plants; nursery plant production; developing and maintaining the landscape; establishing and caring for turf; soil and plant diseases, insects, organisms, and weeds in horticultural plants; floral arrangements; greenhouses and nursery business management; and horticultural equipment operation, maintenance, repair, and safety. Each unit contains some or all of the following: suggested procedures and activities, instructional text, transparency masters, and a list of related references. (MN)