Water propagation doesnt have a clear timeline! It all depends on the plant. This is four months of growth. The philodendron brasil has barely an inch of roots whilst the silver monstera has a whole Plant simulation software Siemens STRYCHNINE TREE Strichhnos Nux Vomica Botanical Picture Antique Illustration Dark Academia Apothecary Toxic Poison Plant Vintage Bookpage Etsy Hibiscus Syriacus 'Blue Bird' from Burncoose Nurseries Building a Raised Bed with Legs Northern Gardener