The many and costly wild land fires in later years have created a demand for better knowledge about the spreading of the wild land fire on to structures and how you should protect your home against these fires. This report is a part of a large study, “Analysis of the fire risk to structures in the southern California urban-wild land interface”, on these matters performed by the University of California at Berkeley. One of the objectives of the study is to assemble a Vegetation Guide in which ornamental plants that are recommended, in a fire protection point of view, to grow next to your house in a urban/wild land interface. This report is a preliminary study on the role of moisture and extractives of ornamental plants which are considered to be two of the characteristics of the plant that contribute to the plants over all flammability. The experiments were performed on Juniper Chinensis a common ornamental plant in California. The conclusions drawn in this report will act as guidelines for future test methods.