Begonias are an annual staple to many container gardens. While there are several different types, one of the most unique is the Angel Wing Begonia. The name comes from the shape of the leaves, which as the name implies looks like angel wings. Whereas you can dig up the whole plant and bring it in before a killing frost, why would you when propagating this annual is simple.
To begin the process, one must first clean and sterilize a 3 to 4 inch container that has a drainage hole in the bottom. If you are going to do several cutting, prepare one container per cutting. The preparation is easy and begins with filling a basin with water. Add one capful of bleach to this water. Place pot(s) in the bleach water and soak for a few minutes. Once that is done, scrub to remove any dirt or hard water stains. Next, rinse in clear water and set out in the sun to dry.
After the pot(s) have dried, fill with an all purpose potting soil mix that has some sphagnum moss mixed in. Water this planting medium until you see moisture coming out the bottom of the container(s). Once this is done, you are ready to start propagating your angel wing begonia through cuttings.
Prior to making your first cut, you will need to sterilize your knife or cutting tool. This is easily done by either soaking the tool in bleach water or just wipe down the cutting surface with bleach or rubbing alcohol.
Next, look over your angel wing begonia and select healthy stems. Using your knife, take a four to five inch angle cut. Remove the leaves from the lower half of the cutting and dip the cut end into a rooting hormone. Place the cutting in a hole created in the planting medium using a pencil. After that is done, gently press the soil around the cutting. Repeat as needed for remaining cuttings.
Put your cuttings in a location that receives indirect sunlight. While the indirect exposure to the sun is important, a critical key to success is moisture. Monitor the soil moisture often with your finger and water when needed.
In several weeks, the cutting(s) will have developed roots. How can you tell? Well, all it takes is a little tug of the cutting. If you feel resistance then the cutting has rooted. At that point, you can upsize the container.