also called Number 3 Grade Perlite, is suggested for use in most orchid potting medias. This material helps to keep the mix well drained in order to prevent rapid breakdown. Since Spongerock is inert, it does not decompose along with the organic components and yet still holds moisture for the plants.
1 gallon resealable bag of spongerock, ready to be combined with your favorite ingredients.
Warning This product can expose you to chemicals including wood dust particles and crystalline silica, which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov/.
Notice Regarding Shipping Costs- As with all our bulky supply items Actual Cost of Shipping will be added when processing your order.