Begonia Masoniana is a classic specimen for collectors of exotic foliage plants. It has medium sized, asymmetrical leaves with a puckered, leather-like texture and a bristly feel to them.
The distinction is the chocolate brown, cross-shaped markings in the middle of apple green leaves. The markings resemble the Iron Cross symbol used during medieval crusades, from where the plant gets its popular name, Iron Cross Begonia. Simply awe-inspiring.
You can grow Begonia masoniana under adequate light but without strong direct sun. For outdoor growing, a shade structure or under a tree is good. Indoors, by a windowsill without extended sun exposure would be great.
The rhizomes are a great help when it comes to Begonia masoniana care. They store water and nutrients, making it possible for the plant to survive irregular watering and temperature variation.
That said, if you want a healthy plant you must give it an evenly moist environment. No plant enjoys neglect. As long as the potting mix is course and the planter drains excellently well, you can water regularly during summer but never overwater.