Begonia rex 'Spiralis' – Decorative Foliage Begonia with Spiral Leaves and Contrasting Colours


Begonia rex 'Spiralis' is a spectacular foliage cultivar known for its unique spiral leaf form. The broad blades twist elegantly around the petiole attachment, giving the plant its name. On the upper surface, silvery tones dominate, marked with bold dark green venation, while the undersides glow in rich burgundy and are softly pubescent. Compact yet eye-catching, this Begonia is a favourite for collectors who value architectural leaf patterns and strong colour contrasts.
 
● Key Features of Begonia 'Spiralis'


Leaf form: Distinct spiral growth pattern around the petiole
Colouration: Silver blades with dark green venation, deep burgundy undersides
Texture: Undersides are softly pubescent, adding tactile interest
Size indoors: Grows 20 – 30 cm tall with a similar spread
 
● Natural Background and Cultivation


Begonia rex originates from northeast India and southern China, where it thrives in humid forest understories. 'Spiralis' is a horticultural selection bred for its unusual spiral leaf form and intense colour contrast, making it a striking ornamental option for indoor displays and terrarium settings.
 
● How to Care for Begonia rex 'Spiralis'


Light: Prefers bright, indirect light; avoid direct midday sun
Watering: Keep substrate evenly moist, allowing the top layer to dry slightly
Humidity: Ideal at 60%+; prevents leaf edge crisping
Temperature: Best between 18 – 26 °C; sensitive to cold drafts
Soil: Airy, well-draining mix with organic content
Feeding: Apply a diluted fertilizer every 3 – 4 weeks in the growing season
 
● Seasonal Behaviour and Growth Notes


‘Spiralis’ is evergreen indoors, maintaining decorative foliage year-round. Growth may slow in cooler months, but the spiral form remains a visual highlight. Regular removal of older leaves encourages new growth from the rhizome.
 
● Possible Issues and Their Causes


Leaf curl: Usually triggered by low humidity or underwatering
Spots on leaves: Can result from overhead watering; irrigate at soil level
Pale growth: Indicates insufficient light
Pests: Occasionally affected by mealybugs; inspect and treat early
 
● Additional Notes


Flowers may appear but remain secondary to the dramatic foliage display. This cultivar is best highlighted in decorative pots or grouped with contrasting foliage plants for maximum effect.
 
● Etymology of Begonia


The genus Begonia was named in the mid-18th century by Charles Plumier, who discovered the plant on Santo Domingo. It honours Michel Bégon (1638 – 1710), a French administrator and amateur botanist who supported botanical exploration.
 
● Why Add Begonia 'Spiralis' to Your Collection?


If you’re looking for a Begonia with unusual form and vibrant colour contrasts, Begonia rex 'Spiralis' is a must-have. Order now and let its spiral foliage become a centrepiece in your indoor plant collection.