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Propagation by Cutting Herbaceous cuttings • • • • Stem Cuttings Leaf Cutting Leaf Bud Cutting Root Cutting Herbaceous stem cutting-with tip Leaf cutting Root cuttings Factors that affect rooting • • • • Time of year Age of stock plant Physical condition of stock Plant species or cultivar Conditions that promote rooting • • • • Temperature Water Light/dark Rooting hormone – Auxin promotes rooting – IBA Indole-3-butyric acid – IAA is the natural auxin but unstable Rooting Media • • • • Clean soil mix Vermiculite Sand Water Forsythe Pot Woody cuttings • • • • Tip Simple or straight Heel Mallet Simple, straight cutting heel Mallet Woody Cuttings • Woody cutting take longer to root • Some are cut in fall and kept cold all winter • Usually benefit from a strong rooting hormone: 8000ppm IBA