Smart Citrus Tree Care Kit for Clay Soil

This product would be a comprehensive kit for citrus tree owners, especially those in challenging environments like Southern California with clay soil. It could include specialized soil amendments for clay, a soil moisture sensor with recommended watering schedules for citrus, organic fungicides/pesticides for common citrus diseases/pests, and a detailed guide on proper fertilization and care tailored to specific regional conditions. This addresses the user's issues with yellowing leaves, mold, watering, and soil type.