Begonia rex 'Chayo' – Iridescent Foliage and Easy Indoor Care


Begonia rex 'Chayo' stands out with its silvery-metallic leaves, deep burgundy veins, and soft pink undertones. This modern hybrid dazzles with a dramatic iridescent effect that shifts under different lighting. Young leaves emerge rounded and gradually mature into elegant teardrop shapes, while rich burgundy undersides enhance the striking contrast. Although Begonia rex hybrids may occasionally flower, 'Chayo' is grown primarily for its ornamental foliage beauty.


Key Features of Begonia rex 'Chayo'

 
Foliage Color: Metallic silver base with deep burgundy venation and soft pink shading
 
Growth Habit: Compact and bushy, reaching 30–45 cm in height and spread
 
Ornamental Value: Highly prized for its intense color variation and shimmering surface


Origins and Growth Background
Begonia rex hybrids originate from species native to Northeast India, southern China, and northern Vietnam. 'Chayo' was bred for its improved foliage traits, offering vibrant colors and a compact structure ideal for indoor spaces. Like all rex begonias, it grows from a rhizomatous base and thrives in warm, humid conditions. Note: Begonia rex 'Chayo' is toxic to pets and humans if ingested.


Complete Care Guide for Begonia rex 'Chayo'
Light and Placement

 
Requires bright, indirect light to maintain vivid leaf coloration.
 
Protect from harsh direct sun, which can cause leaf scorch.
 
Can tolerate lower light but may show reduced vibrancy.


Watering and Soil

 
Allow the top 2–3 cm of soil to dry before watering again.
 
Use a light, well-draining potting mix enriched with perlite and organic matter.
 
Water with filtered or rainwater to prevent mineral spotting on leaves.


Humidity and Temperature

 
Prefers humidity levels above 50–60%.
 
Ideal temperatures range between 18–25 °C. Avoid cold drafts.
 
Avoid direct misting; use pebble trays or humidifiers instead.


Repotting and Pot Selection

 
Repot every 1–2 years using shallow pots to accommodate the rhizomatous spread.
 
Always ensure proper drainage to avoid root rot.


Fertilizing and Maintenance

 
Feed monthly with a diluted, balanced liquid fertilizer during the growing season.
 
Trim old or damaged leaves to promote new growth and airflow.
 
Prune lightly to encourage a denser, bushier form if necessary.


Propagation Methods

 
Easy propagation via leaf cuttings or rhizome divisions.
 
Keep propagations in warm, humid conditions for best success.


Semi-Hydroponic Cultivation

 
Can adapt to semi-hydroponics with proper nutrient management and stable humidity.


Common Problems and How to Fix Them
Pest Issues

 
Spider mites: Dry air encourages outbreaks. Boost humidity and treat with neem oil or insecticidal soap.
 
Aphids and thrips: Target new growth. Treat with insecticidal sprays and sticky traps.


Root Rot and Water Management

 
Prevent by using fast-draining soil and careful watering practices.


Leaf Discoloration

 
Yellow leaves: Caused by overwatering or nutrient deficiency.
 
Brown tips: Due to low humidity. Increase moisture levels around the plant.
 
Faded colors: Move to brighter filtered light.


Fungal Infections

 
Improve airflow and avoid water sitting on the leaf surface to reduce risk of powdery mildew or Botrytis.


Additional Notes on Growth

 
Does not require a trellis or climbing support.
 
Natural leaf aging occurs — remove fading leaves regularly to maintain vigor.


Etymology of Begonia rex 'Chayo'
The genus Begonia was named for Michel Bégon, a French colonial administrator and plant collector. The term rex means "king" in Latin, celebrating the regal foliage of these begonias. 'Chayo' refers to this cultivar’s shimmering, luxurious appearance.


Frequently Asked Questions

 
Can I grow Begonia rex 'Chayo' outdoors?
Only in tropical climates. In temperate zones, it must be kept indoors year-round.
 
Does it flower?
Yes, but flowers are small and secondary to its dramatic leaves.


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