This plant has been grown on coconut fiber. The official name for this plant is Flame Moss. The measurements are 2.5″ x 4.5″. This is a very popular product amongst our customers, and for good reason! The green leaves on this plant really sway with the water to create that lush tropical oasis both you and your little friends will both enjoy. Please subscribe to our newsletter for upcoming deals and incentives. Contact us with any questions.