Begonia Rex 'Flamenco'
Begonia rex-cultorum 'Flamenco'
Swirling burgundy, silver, and pink leaf patterns that look hand-painted — one of the most dramatic foliage plants you can grow indoors.
Overview
Begonia Rex 'Flamenco' is a showstopping rex begonia cultivar with large, asymmetrical leaves that swirl in deep burgundy, metallic silver, and rose pink. No two leaves are identical, and the iridescent sheen on the surface catches light in a way that makes it look almost unreal. Rex begonias are grown entirely for their foliage — the flowers are small and secondary to the leaf display. 'Flamenco' is a collector favorite for its bold color contrast and spiral leaf form. It thrives in bright indirect light with high humidity and careful watering.
Care Requirements
Light
Bright Indirect Light — no direct sun; leaves scorch and fade easily
Water
Every 1–2 weeks — allow top inch to dry; never let it sit in water
Humidity
High (50–70%) — essential for healthy, large leaves and preventing crispy edges
Soil
Well-draining, lightweight mix — perlite, peat or coco coir, and potting mix; never dense or compacted
Temperature
65–80°F (18–27°C) — protect from temperatures below 60°F and all cold drafts
Fertilizer
Balanced liquid fertilizer diluted to half strength every 4 weeks in spring and summer; stop fertilizing in fall and winter
Detailed Care Guide
Light
- Needs bright indirect light to maintain the vivid burgundy, silver, and pink coloration
- Direct sun scorches the delicate leaves and bleaches the metallic sheen
- Low light causes the colors to dull and growth to slow significantly
- North or east-facing windowsills work well; a few feet back from a south window is ideal
Watering
- Water every 1–2 weeks — allow the top inch of soil to dry between waterings
- Never let the plant sit in standing water — root rot develops quickly
- Water at the base, not on the leaves — wet foliage causes powdery mildew and rot
- Reduce watering in winter when growth slows
Soil
- Use a lightweight, well-draining mix — perlite, peat or coco coir, and potting mix
- Dense or compacted soil causes root rot — aeration is critical
- Slightly acidic pH (6.0–6.5) is ideal
- Shallow pots work better than deep ones — rex begonias have shallow root systems
Temperature & Humidity
- Prefers 65–80°F (18–27°C) — sensitive to cold and temperature swings
- High humidity (50–70%) is essential — use a humidifier or pebble tray
- Do NOT mist the leaves directly — water on the foliage causes powdery mildew
- Keep away from cold drafts, air conditioning vents, and heating vents
Difficulty Level
Intermediate — Begonia Rex 'Flamenco' rewards careful attention to humidity, watering technique, and light. The main pitfalls are overwatering, misting the leaves, and low humidity. Get those three things right and it will reward you with some of the most spectacular foliage in the plant world.
Extra Notes
Toxic to cats and dogs — contains soluble calcium oxalates and other compounds that can cause vomiting and irritation if ingested. Keep out of reach of pets. Rex begonias go through a natural rest period in winter — growth slows and some leaves may drop. This is normal; reduce watering and stop fertilizing until spring.
Pro Tip
The secret to keeping 'Flamenco' looking its best is humidity without wet leaves. A humidifier nearby (not misting) keeps the edges from crisping, and watering at the base prevents powdery mildew. If you can nail those two things, this plant will put on a show that stops every visitor in their tracks.
New to this plant?
Just Received This Plant?
If you just received a cutting or node: place in a warm, humid environment (70°F+) on moist propagation mix. Cover loosely with a clear humidity dome. Keep in bright indirect light. New plantlets emerge from the veins in 4–6 weeks. Do not overwater — keep the mix barely moist, not wet.
If you just received a potted plant: unbox and place immediately in bright indirect light. Do not water unless the soil is completely dry — shipping stress plus wet soil causes root rot. Set up a humidifier nearby right away. Do not mist the leaves. Do not fertilize for 6–8 weeks. Expect some leaf drama in the first 2 weeks as it adjusts to your home's conditions.
Basic Care Instructions
Place in bright indirect light away from direct sun, water every 1–2 weeks at the base (never on the leaves), and maintain 50–70% humidity with a humidifier. Use a lightweight, well-draining mix. Fertilize at half strength every 4 weeks in spring and summer. Protect from temperatures below 60°F.
Propagation
Leaf cuttings are the most reliable method — cut a healthy leaf into sections, each with a main vein, and lay flat on moist propagation mix. Keep warm (70°F+) and humid. New plantlets emerge from the veins in 4–6 weeks. Stem cuttings also work on more mature plants.
Common Problems & Fixes
Powdery mildew on leaves
Caused by water on foliage or poor air circulation — always water at the base, improve airflow, and remove affected leaves
Crispy brown leaf edges
Low humidity — increase to 50–70% with a humidifier or pebble tray; never mist directly
Colors fading / leaves turning dull green
Needs more light — move to a brighter spot with bright indirect light to restore the vivid burgundy and silver tones
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