This Greenhouse & Landscaping Maintenance Project is a structured, real-world project designed for high school agriculture, horticulture, and greenhouse classes (Grades 9–12). Students research plants, identify maintenance tasks, and create a maintenance plan and tracking spreadsheet for a greenhouse, garden, or landscaping area. The resource includes a teacher lesson plan outline, student project outline, colorful step-by-step guide, project instructions, grading rubric, and example materia