Expanded polystyrene or EPS is often used by commercial landscaping
companies as lightweight void fill in planters for both live and
artificial plants. The photos below show an application where precut EPS
blocks are used to take up space while providing an opening for a potted
tree. In green roof applications EPS geofoam blocks are used to create
rolling contours, bearing surfaces for pavers and lightweight fill under
planted areas. For smaller applications using artificial plants,
STYROFOAM™ Brand foam is often used because of the ease of inserting the
wire stems.
