Studying of using of semi-hardwood cuttings that were got from different ages for Magnolia gradiflora L. trees: Young trees that are 15 years old, middle-aged trees that are 30 years old, and only one old giant tree which is 110 years old were performed by treating the cuttings with Indole Butric Acid Rooting Hormone 2000 P.P.M. which was used during three periods of time: 10, 20 ,and 30 seconds under green house conditions.