In comparison to most of the Rex Rhizome Begonias sold in the local nurseries here, I find these are the mostly available begonia plants and the last to be sold from the stand. Often, many will refrain from taking in for weeks and somehow these foliage will appear so worn out in the open without much care.
The reason is evident. Many gardeners had failed to cultivate them and lost interest and these somehow looks more fake than real. I had yet to see a huge established plant of this kind anyway in reality or in pictures.
Anyway, If this is truly a genuine plant without all those dye.I would say, truly it's a beautiful remarkable plant to view in a grander scale of the red flashed iridescence leaves across the garden view. And as often, the new leaves somehow looses the red sheen and flash back naked with the silver tones. (I hope the plant industry is not spraying dye on them)
Also, it comes with many similar names:
Begonia 'Harmony's Red Robin' and a few others.
These are truly a Highland types, often cultivated and sold from Cameron Highlands, These require very cold freezing nights that cause the red pigmentation to appear and the same time bright cool daylight. Being a Red Tone Begonia - it may be challenging for the plant to photosensitize due to lack of green pigmentation on them, hence it may be a slow growing plant in comparison to the green counterpart Rex Begonias.
If you can notice - the red is slowing kissing good bye and slowly reverting to silver tones. Some gardener's mentioned that it is because this is a highland type and may require a cold climate type of setting to retain the red colors.
Here is the link where I had put together a list of all the begonias that I had come across. A database of all the different types & their characteristics. Please click on the link on the title above for the post.