Sponge Rock
Sponge 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.
Special Note: If you would like to order more than one product in this category,
please place the order via the telephone at (609) 927-4126. All orders that have
been placed for more than one product from this category will be held until the
additional shipping is corrected. Thank You Waldor Orchids
- #3 medium size sponge rock