This is to the person who claims they received Styrofoam in their plant media...first, thank you for the laugh today...that was hilarious. Second, it WAS perlite that was in your growing media. In horticulture, perlite can be used as a soil amendment or alone as a medium for hydroponics or for starting cuttings. When used as an amendment it has high permeability / low water retention and helps prevent soil compaction.
ordered a Red Twig Dogwood and it arrived quickly, already about 3 feet tall with a healthy root ball. Its doing well so far. Will be ordering more shrubs come spring. Try them out-i found their name thru my garden gate mag.