Oscar, I have had some luck with cuttings - and that is without a rooting hormone, but at other times it did not work out at all. Shade, temperature, soilmix, time of year etc. all could to be factors which influence the success, and which I have not managed yet. A friend of mine cut off to big branches from a tree I gave him years back and managed to root both just by placing them in the soil during the rainy season...