Propagating philodendron billietiae cutting? Cat monster Ranger Retrocenter 3 tips when splitting a Tree Philodenron , 1. The cutting you split off needs to have some stem. Roots wont grow from a leaf cutting and even if roots do randomly grow from a petiole (which sometimes Monstera deliciosa leaf growth: when it is time for a monstera to unfurl a new leaf, the process takes between a few weeks to a month, depending on a variety of factors like light, temperature, and