Quillquina is commonly eaten (tastes a bit like cilantro) and used as a medicinal herb.Quillquina has been used for centuries in Central America for treating high blood pressure, although it also has liver cleansing properties as well.
Peterson Pawpaws. Info
ground covers instead of mulch
Ground Fern Moss
Tn Tree Nurseries - Ground Fern Moss, $34.99 (http://www.tnnursery.net/ground-fern-moss/) 5 sq ft