Delaune (2005) obtained different results, working with Clerodendrum. Applications of paclobutrazol at doses of 15, 20 and 35 mg per pot caused a reduction in the number of side shoots on Clerodendrum ugandense when applied once a week for three weeks. The residual effect of paclobutrazol was verified by Pateli et al. (2004) in an experiment with Epidendrum radicans to be 7.5 months after the last application, but Lever (1986) estimated this effect could vary between 3 and 12 months.