Sponge rock, also known by the name expanded perlite, is a very common ingredient in orchid mixes. Sponge rock decreases compaction of mix, increases aeration and retains moisture.

Perfect for attaching plants to wood, cork or ceramic! Non-toxic, clear and quick-drying.

Good drainage is key for the health of a potted plant. Mesquite charcoal is free of chemical additives, slow to decompose, helps drainage, provides air circulation for orchids, and grabs onto nutrients and toxins in any mix it is incorporated into.