Volcanic Rock- Pumice 3/8''
- Add to Cart
Pumice is a type of volcanic lava rock that is lightweight and porous. It is used as an amendment in soil and potting mixes to improve drainage and contribute to moisture retention. Pumice is great for drainage, while pumice works well in retaining moisture for larger pots or in landscaped areas. A combination of the two can be used to perfect desired drainage rates.