Foundations of Horticulture and Specialty Crops: Plant Science, Growing Systems, and Crop Selection

Successful horticulture begins long before the first seed goes into the ground. Understanding how plants grow, what they need from their environment, how production systems differ across greenhouse, nursery, orchard, and field contexts, and how to match the right crop to the right site and system — these are the foundational competencies that underlie all specialized horticultural practice. This course provides that foundation in a clear, practically oriented way. By the end of this course you will be able to explain the basic principles of plant physiology as they apply to horticultural production, compare the major production systems (greenhouse, nursery, orchard, vineyard, and vegetable field) in terms of their environmental requirements and management demands, describe the key factors in site and crop selection, and identify the primary pest, disease, and nutritional challenges in specialty crop production. What you will learn: - Plant physiology fundamentals: photosynthesis, transpiration, nutrient uptake, and plant growth cycles - Soil health and fertility management in horticultural systems: pH, organic matter, and soil structure - Greenhouse management basics: climate control, light management, and growing media selection - Nursery operations: propagation methods including seed, cutting, grafting, and tissue culture - Orchard establishment and management principles: site selection, rootstock, training systems, and pruning - Viticulture fundamentals: grape variety selection, vine training, canopy management, and harvest timing - Integrated pest management (IPM) in horticultural settings: principles and common applications - Irrigation systems for specialty crops: drip, overhead, and micro-irrigation design principles The course is organized across five units covering plant science, soil and water management, production systems, pest and disease management, and crop selection. Each unit provides explanatory readings, case examples from commercial and small-scale operations, and structured reflection prompts. Diagrams and annotated examples illustrate plant structures, production system layouts, and IPM decision frameworks. This course is educational and informational; hands-on production work, operation of equipment, and use of agricultural chemicals require appropriate supervised training and compliance with local regulations and licensing requirements. This course is designed for those new to professional or serious amateur horticulture, including aspiring growers, agricultural students, nursery workers, and vineyard or orchard employees seeking to build a theoretical foundation for their practical work. No prior formal training in plant science or agriculture is required.