What is fiberstone? Fiberstone, also known as fiber stone, is made from a mixture of fiberglass and crushed stone (usually limestone). Sand, metal fiber, and other heavy elements are sometimes added to the mixture to provide weight and strength. What is the difference between fiberstone and fiberglass? Both materials offer a variety of benefits and drawbacks. The time-tested molding and finishing methods have made fiberglass cheaper to produce and more accessible while offering plenty of durability and strength for larger plants as well. Advantages of fiberstone Fiberstone pots are available in various shapes and sizes, from a few inches to over two feet. It is a rigid, durable, and versatile material that is resistant to the extreme outdoors Fiber stone has a real stone look and feel. Its appearance can be made to look like concrete too. Fiberstone’s natural stone and antique feel suit traditional designs. Small fiberstone pots are light enough to be used both indoors and outdoors.the paint and material had a strong oddor , before use it let it dry at least 1 hour and wipe it with a rag