Begonia rex 'Coco' – Elegant Silver Leaves with Dark Midrib and Burgundy Undersides


Begonia rex 'Coco' is a refined foliage cultivar admired for its understated elegance. Its silvery leaves are marked by an almost black midrib and framed with undulating, slightly serrated edges that give depth and texture. Flip the foliage and you’ll find rich burgundy undersides, adding a hidden layer of drama. Compact yet sophisticated, 'Coco' is ideal for plant lovers who want a Rex Begonia with subtle contrasts rather than flamboyant colour.
 
● Defining Features of Begonia 'Coco'


Leaf surface: Silver blades with a nearly black midrib
Margins: Slightly serrated, undulating edges for texture
Undersides: Deep burgundy, contrasting with the silver tops
Indoor size: Typically 20 – 30 cm tall and wide
 
● Botanical Background


Rex Begonias stem from Begonia rex Putz., native to northeast India and southern China, where they thrive in shaded forest understories. 'Coco' is a cultivated selection created for its elegant silver foliage and contrasting dark venation, offering a quieter aesthetic compared to more vividly patterned cultivars.
 
● Care Guide for Begonia rex 'Coco'


Light: Bright, indirect light enhances silver tones; avoid harsh direct sun
Watering: Keep substrate evenly moist; let the top 1 – 2 cm dry before rewatering
Humidity: Best at 60%+ to maintain leaf edges and prevent crisping
Temperature: Ideal between 18 – 26 °C; avoid cold drafts
Soil: Airy, organic-rich mix with drainage components
Feeding: Diluted balanced fertilizer every 3 – 4 weeks during active growth
 
● Growth and Seasonal Notes


'Coco' keeps its ornamental foliage year-round indoors. Its rhizomatous habit produces steady new leaves, with growth strongest in spring and summer. The compact size makes it an excellent option for tabletops and mixed displays.
 
● Common Problems and Fixes


Brown leaf edges: Caused by low humidity or irregular watering
Pale or weak colour: Usually from insufficient light exposure
Pests: May occasionally attract mealybugs or spider mites; treat promptly if found
 
● Questions About Begonia 'Coco'


How tall does it grow indoors? Typically 20 – 30 cm, making it compact and manageable.
Can it be propagated? Yes, by rhizome division or leaf cuttings in high humidity conditions.
Is it safe for pets? No, 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 in honour of Michel Bégon (1638 – 1710), a French administrator and amateur botanist. 'Coco' carries this legacy into modern collections with its subtle yet striking silver foliage.
 
● Why Add Begonia 'Coco' to Your Collection?


With its silver leaves, dark midrib, and burgundy undersides, Begonia rex 'Coco' offers elegance and subtle contrast. Order today and bring this sophisticated cultivar into your indoor plant collection.