Soil is a real part of the simulation
Soil is not just decoration in Tiny Eden. The official FAQ describes a system with seven agricultural components and NPK-related parameters, alongside light and temperature. That makes soil feedback worth reading as part of the plant’s full environment.
Use in-game feedback as the authority
The public sources do not verify a universal “best soil” or a fixed recipe for a specific plant. When a plant struggles, compare its in-game condition information with its current placement and soil state before changing several variables at once.
What this guide will not claim yet
No public official source presently confirms item names, exact nutrient targets, how to purchase or mix soil, or which action resolves a particular warning. Those specifics need a versioned in-game test before they belong in a guide.