The unit was developed as a guide for use by teachers in planning and conducting adult classes in horticulture. The target audience is adults employed in agriculture in Kentucky. Because of the diversity in age, expertise, and experience levels of class members and instructors, the unit was designed to cover the basic areas of greenhouse management. Seven lessons have been included which may be modified or expanded to suit each particular course. Lessons are in outline form with the major headings of objective, problem and analysis, content, and suggestions for teaching the lesson. Supplementary materials in the form of illustrations and charts are provided. Appended are unit planning forms and a unit evaluation instrument. (LJ)