This document discusses the history and development of sensory gardens. It began in the 1970s in the Netherlands and UK as a concept for multi-sensory environments. Sensory gardens were initially called "gardens for the blind" but that concept was challenged in the 1980s. The document outlines key elements of sensory gardens including scents, textures, sights, sounds and tastes. It also discusses several case studies of sensory gardens and common problems in their design and maintenance. The author has conducted extensive research on sensory gardens in Malaysia and their benefits for children with special needs.