Begonia masoniana 'Iron Cross' – Classic Foliage Begonia with Textured Leaves and Dark Cross Pattern


Begonia masoniana 'Iron Cross' is the most iconic cultivar of this Chinese species, named for the bold dark cross that marks the center of its puckered, light green leaves. This rhizomatous Begonia forms compact clumps of textured foliage covered in tiny hairs that catch the light, giving each leaf a unique sheen. Alongside its striking foliage, it occasionally produces clusters of small greenish-white flowers, adding another delicate feature to this highly collectable plant.
 
● What Makes Begonia 'Iron Cross' Special


Leaf pattern: Distinctive dark “iron cross” marking over pale green blades
Texture: Puckered, pubescent leaves with a natural glossy sheen
Growth style: Rhizomatous clumps, compact and manageable indoors
Flowers: Occasional greenish-white blooms
 
● Background and Native Context


Begonia masoniana was first described from southern China and northern Vietnam, where it grows in shaded, humid forest habitats. The cultivar 'Iron Cross' quickly gained popularity in horticulture for its distinctive foliage markings, making it one of the most widely recognised Begonia varieties worldwide.
 
● Care Guide for Begonia masoniana 'Iron Cross'


Light: Bright, indirect light highlights the leaf markings; avoid harsh sun
Watering: Keep soil evenly moist; allow the surface to dry slightly between waterings
Humidity: Benefits from 60%+ humidity for best leaf health
Temperature: Ideal at 18 – 26 °C; sensitive to drafts and cold
Soil: Airy, organic-rich substrate with good drainage
Fertilization: Diluted balanced fertilizer every 3 – 4 weeks in active growth
 
● Growth and Seasonal Notes


'Iron Cross' keeps its foliage indoors year-round, with new leaves emerging regularly from rhizomes. Growth may slow during winter, but resumes strongly under spring warmth and steady humidity.
 
● Common Issues and Remedies


Brown leaf edges: Caused by low humidity or irregular watering
Faded markings: Usually linked to insufficient light; move closer to filtered brightness
Pests: Occasionally affected by mealybugs or spider mites; inspect and treat early
 
● Questions About Begonia 'Iron Cross'


How big does it get? Indoors it usually grows 20 – 30 cm tall and wide.
Does it flower? Yes, it occasionally produces clusters of small greenish-white flowers.
Is it pet safe? No, like all Begonias it contains oxalates and should be kept out of reach of pets and children.
 
● Etymology of Begonia


The genus Begonia was named in the 18th century by Charles Plumier, in honour of Michel Bégon (1638 – 1710), a French administrator and amateur botanist. The epithet masoniana recognises Benjamin Mason, an English horticulturist. 'Iron Cross' remains the most popular cultivar, known worldwide for its distinctive foliage.
 
● Why Add Begonia 'Iron Cross' to Your Collection?


With its textured green leaves, bold dark cross, and occasional delicate flowers, Begonia masoniana 'Iron Cross' is a true classic. Order today and let this iconic cultivar bring structure and character to your indoor collection.