Native to tropical West Africa, Dracaena trifasciata grows in warm, seasonally dry conditions where water moves through the ground fairly quickly. That background explains why Snake plant soil should feel open and well-drained rather than dense or constantly damp.
Its thick roots and underground rhizomes store moisture, so the plant handles short dry periods better than soggy soil. The best soil for Snake plant combines sandy or loamy texture with some organic matter, giving roots air while still holding a light, even reserve of moisture.