Planter Box Fill

Our crushed glass is being used as fill for planter boxes. Mixing glass sand with soil decreases the amount of fill dirt needed at no harm to the plants. Glass has been found to work exceptionally well wherever drainage is required. Glass is more permeable than natural sand, compacts easily, holds grade, absorbs no water and is relatively inert. There is ongoing research into what percentages of glass sand varieties of plants thrive in.

Reference

B. Terney, Pulverized Glass Aggregate, 2003. University of NH Technology Transfer Bulletin http://www.t2.unh.edu/spring03/pg6.html