Fundamentals of Horticulture is a foundational guide crafted for students, educators, professionals, and hobbyists interested in understanding the core principles and practices of horticulture. This book serves as an entry point into the field, covering a broad range of topics necessary for grasping the science, art, and technology behind plant cultivation. The book begins with an introduction to horticulture and its various branches-floriculture, olericulture, pomology, and landscape gardening-before diving into more technical subjects. Topics such as plant anatomy, physiology, propagation methods, soil science, irrigation, plant nutrition, and pest and disease management are thoroughly discussed. Emphasis is also placed on sustainable horticultural practices, climate-smart agriculture, and modern tools and technologies transforming the industry. Written in a clear and straightforward language, the book is tailored to meet the academic requirements of undergraduate students pursuing degrees or diplomas in agriculture and horticulture. Additionally, it is a useful reference for extension workers, nursery owners, and gardeners who seek to enhance their understanding or solve practical problems. Each chapter includes illustrative diagrams, case studies, and end-of-chapter assessments to aid comprehension and retention. The content reflects both traditional knowledge and contemporary practices, making it relevant across diverse geographic and climatic conditions. Whether used in the classroom, field, or home garden, Fundamentals of Horticulture equips readers with the essential knowledge and confidence to engage effectively with plants and their cultivation. It lays the groundwork for further exploration in advanced horticultural sciences.