This Begonia does excellent in a larger terrarium or greenhouse. It can be temperamental, and is prone to melting for no apparent reason. The foliage becomes a darker green with maturity. New foliage is a beautiful pink/red with that charismatic green spotting. At full maturity it can approach 2′ tall, but, I’ve struggled to get plants over about 8″ in a terrarium.

The last photo is representative of the plants available. They are well rooted and shipped meticulously in their pots.