Begonia rex 'Magma' – Silver-Pink Foliage with Dark Serrated Edges and Burgundy Undersides


Begonia rex 'Magma' is a dramatic foliage cultivar that earns its fiery name through bold colour contrasts. The large leaves shimmer in silver-pink, framed by dark, undulating serrated edges and anchored by a deep midrib. Turning the plant reveals burgundy undersides that add even more depth and intensity. Compact yet striking, 'Magma' is a true showpiece for collectors and anyone who values painted-leaf Begonias with a strong visual presence.
 
● Key Traits of Begonia 'Magma'


Leaf colour: Silver-pink surface contrasted with dark margins and midrib
Edges: Undulating, serrated, adding texture and movement
Undersides: Burgundy tones enhance colour contrast
Size indoors: Typically 20 – 30 cm in height and spread
 
● Botanical Background


Rex Begonias stem from Begonia rex Putz., native to the humid forest understories of northeast India and southern China. 'Magma' is a cultivated selection bred for its molten-like blend of silver, pink, and burgundy tones. Its ornamental value lies in both its vibrant leaf palette and textural serrations.
 
● Care Instructions for Begonia rex 'Magma'


Light: Thrives in bright, indirect light; avoid direct midday sun
Watering: Keep soil evenly moist but allow the top 1 – 2 cm to dry slightly before rewatering
Humidity: Prefers 60%+ for crisp leaf edges and vibrant colours
Temperature: Ideal between 18 – 26 °C; protect from drafts
Soil: Airy, organic-rich substrate with good drainage
Feeding: Apply diluted fertilizer every 3 – 4 weeks during growth season
 
● Growth and Seasonal Behaviour


'Magma' retains foliage year-round indoors. Leaves emerge steadily from creeping rhizomes, showing vivid silver-pink shades that deepen in stable humidity and warmth. Growth slows in winter but resumes strongly in spring.
 
● Potential Problems and Remedies


Brown leaf edges: Caused by low humidity or inconsistent watering
Pale leaves: Often linked to low light; move to brighter filtered conditions
Pests: May attract mealybugs or spider mites; inspect regularly and treat early
 
● Questions About Begonia 'Magma'


How large does it grow? Indoors, 'Magma' usually stays compact, 20 – 30 cm tall and wide.
Can it be propagated? Yes, through rhizome division or leaf cuttings under high humidity.
Is it toxic? Like all Begonias, it contains oxalates and should be kept away from pets and children.
 
● Etymology of Begonia


The genus Begonia was named in the 18th century by Charles Plumier to honour Michel Bégon (1638 – 1710), a French administrator and amateur botanist. 'Magma' continues this legacy as a modern foliage cultivar with intense ornamental value.
 
● Why Choose Begonia 'Magma'?


With silver-pink foliage, dark serrated margins, and burgundy undersides, Begonia rex 'Magma' offers fiery contrasts in compact form. Order now and add its molten beauty to your indoor plant collection.