Small Sponge Rock - Perlite Size:Standard Bag This mix is distinguished by

This mix is distinguished by what it doesn't have in it

Pour diluted solution over the potting mix

promotes strong growth and is easier to rewet than sphagnum moss alone

fertilizer) and the pH of the orchid mix

called the "leachate" can then easily be tested for pH using the Test Kit Strip

Small Sponge Rock - Perlite Size:Standard Bag This mix is distinguished bySponge rock, also known by the name Perlite, is a very common ingredient in orchid mixes and for good reason. Sponge rock decreases compaction of mix, increases aeration and retains moisture. Sponge rock is a volcanic glass that expands when heated and becomes very porous. The small sponge rock, #2, is wonderful in seedling and peat mixes.