Six recipes, three layers, zero bark. An overview of our substrate system — which mix fits which use case, from root rot recovery to tissue culture acclimation. Article 4 of the Petruscio Substrate Series.

Every ingredient that shows up in a chunky tropical mix — what it is, what it actually does in the root zone, where it’s worth buying, and where we’ve concluded it isn’t. Including the ingredients we deliberately avoid. Article 2 of the Petruscio Substrate Series.