This Begonia's large, gorgeous leaves could have been painted, with their contrast of deep green and red set against glowing silver within the jagged shape of the leaves. Begonias don't like getting their leaves wet, so when you water, go directly into the soil or bottom-water. Keep this plant happy with some humidity, indirect light and a warm spot and it will reward you with stunning foliage sure to grab attention on your sideboard, shelf or window ledge. When they are really happy and healthy, Begonia rex can grow up to two foot (60cm) tall, with leaves up to 25cm wide!
Scientific Name
Begonia diadema x rex 'Helen Teupel' (crown begonia crossed with king begonia, cultivar: Helen Teupel)
This Begonia is a hybrid between two species, B. diadema and B. rex.
Common Name
Helen Teupel Begonia, Rex Begonia. King Begonia, Painted Leaf Begonia, Fancy-Leaf Begonia
Origin
Begonias are native to tropical parts of the world, but this cultivar was originally bred in Germany in 1928
Light
Thrives in bright, indirect light, but will tolerate some shade. A North- or Northeast-facing window is a good bet here!
Water
Keep the soil moist, but ensure good drainage and don't allow to sit in water. Water when the top inch of soil is dry, and reduce watering in winter. Don't water onto the leaves.
Humidity
Begonias like humidity; average indoor humidity is fine as long as they aren't too close to a radiator which will dry them out! They will love a bright kitchen or bathroom.
Soil
A well-draining mix with added sand and coir, such as a blend designed for ferns, will work well here. Repot every three years or once the plant and roots are crowding the pot.
Food
Feed every four waters in the growing season, reduce to every six in autumn and winter.
Temperature
Ideal temperature range of 15-26°C; don't let it drop below 12°C in winter.
Pet-safe
No, this plant is toxic to pets and small humans.
Sprouts Top Tips
Water directly into the soil or bottom-water by placing the plant into a tray of water for about ten minutes to let it drink its fill - these Begonias don't like getting their leaves wet.