Pumice

Pumice is the secret ingredient expert growers use to create unbeatable soil mixes. Unlike perlite, this 100% natural, porous volcanic rock doesn't float to the top when you water, won't break down over time, and doesn't blow away, providing a permanent, stable structure to your substrates. Its micro-sponge structure is fascinating: it holds water and nutrients inside its pores to slowly release them as the plant needs them, while maintaining large air pockets around it to oxygenate roots and prevent rot. Use it to add superior drainage to your aroid mixes, create the perfect mineral soil for your cacti and succulents, or even as a standalone medium for propagation and semi-hydroponic setups.