Cephalotus Soil Mix: Silica Sand Sources and Why Vermiculite Fails

An East Coast grower asked for a recommended sand brand for Cephalotus and whether vermiculite could replace hard-to-find pumice.

Jeff Dallas suggested silica sand or sandblasting sand. In the Appalachians, children’s play sand (from metamorphic rock) is often safe. Avoid vermiculite—it releases minerals and holds too much moisture for Cephalotus, which needs sharp drainage.