Small form vs large form Monstera Deliciosa. Both plants are juvenile. You can easily distinguish the two by petiole length vs sheath length. But as they grow the small form will have No fenestrations on your monstera? Check these causes Kirschlorbeer Prunus laurocerasus 'Rotundifolia' H 125 150 HORNBACH Philodendron Imperial Green Groe Bltter & Robust Florage.de Monstera dubia is by far the fastest grower in my collection. It's been through quite a dramatic transformation over the last 12 months from its teen & baby days (swipe). to mature, Monstera deliciosa Lochpflanze Moosstab Terrapalme Heim und Gartenshop