This begonia doesnt seem to fall into the ordinary categories; therefore, no info on how to propagate. Some help would be greatly appreciated, before I make a mistake and kill them!
Propogate Gryphon Begonia
Certified GKH Gardening Expert
They are very similar to propagate to the angelwing begonia. You can take tip cuttings, dip them into a mixture of a drop of honey,and a crushed aspirin tab in warm water just enough to turn into a thick syrup. This will be the rooting hormone. Stick this in moist seedling or potting soil, and spray when it starts to dry. They will root within a week or so.
Here is an article to rooting many plants:https://www.gardeningknowhow.com/garden-how-to/projects/rooting-plant-cuttings.htm