Abstract: In order to improve the rooting ability of coleus, environmentally-friendly superabsorbent composites based on natural products such as montmorillonite (MMT) and sodium carboxymethyl cellulose (CMC) were prepared at room temperature with characteristics of low energy consumption. The effect of composites composition and synthesis conditions on the rooting indicators of coleus were studied by orthogonal experiment. A superabsorbent composite with optimum comprehensive rooting ability was obtained using analytic hierarchy process (AHP). The results showed that the synthesized composites can improve the rooting ability of coleus to varying degrees, however, significant differences were observed among different composites. The natural components content significantly impacts the rooting ability of coleus. MMT, a natural clay, has the greatest influence on the late rooting formation (root mass and growth rate). CMC, a natural polysaccharide, has the greatest influence on the early rooting formation (cuttings wound healing and rooting). Compared with the control sample, the rooting rate, root number, total root length, maximum root length, root dry weight and comprehensive rooting ability of coleus using the optimum superabsorbent composites increased 6, 20, 22, 2.3, 7.2 and 18.4 times, respectively, which was important to improve the flower breeding coefficient such as coleus, providing an experimental basis for this superabsorbent composite in the garden cutting propagation.