There are so many variants similar like Begonia Maurice Amey, especially the strong close resembles of Begonia Sinbad & Begonia Aya and identifying them with a few others can be challenging.
However these have unique features - this particular one - the leaves do not grow large, it has the metallic pink tones with white spots with small tiny flowers hanging in small cluster at the branch edges.
This begonia can be frail and so putting a stake for support may be necessary or it would fall under it's own weight. The stem does not grow big and they do branch off often creating a bushy display.
Just like most Cane Begonia species - this one is grown on a medium:
50% coco chip mixed with sand & potting mix. I found this medium used for propagation by the nursery owner - I had slightly added the same medium type and re-pot it in a bigger pot.
So far - the plant doubled it's size.
I had used Osmocote fertiliser before and had found them very unreliable and unstable as to determine how much to use - too much and the plant withers away - too less and the plant doesn't grow to it's optimum size. Ideally using 3-4 pieces of Osmocote as fertilizer - 2 week once would be good but in case if it's over used - the begonia plant dies.
On alternative week - I spray root hormone known as (Vitamin B1) a solution for stronger root growth as these are prone for root rot. Again I use in half strength - a capful with half bucket of water.
Slightly spray water once a day in the morning and refrain watering rainy days.
I do water twice a day on a dry and hot days - it's depending on the weather.
Other matters are very much similar with the general information about Cane Begonias.
Do click below for more information on Cane Begonias.
Cane Begonia Care & Cultivation information.