Begonia rex is a rhizomatous begonia from the East Himalayas, grown mainly for its dark, silvery-banded foliage rather than its flowers. Its many hybrid cultivars (Rex begonias) are popular houseplants, and the key is steady moisture with bright, indirect light.
Family
Begoniaceae (Begonia family)
Grows as
Bulb
Light
Full sun, Bright indirect
Water
Keep soil evenly moist but not soggy; let the top layer dry slightly between waterings.
Soil
Well-draining, peat-based or light houseplant mix with added perlite.
Temperature
18–24 °C; protect below 10 °C
How easy
Moderate
Safety
Toxic: The whole plant contains calcium oxalate crystals that can irritate the mouth and skin if chewed or handled.. Toxic to cats and dogs (ASPCA).
Native range
S. Bhutan to N. Myanmar
Climate
subtropical
About
Begonia rex, the king begonia, fancy-leaf begonia, or painted-leaf begonia is a species of flowering plant in the family Begoniaceae. It is a rhizomatous begonia first brought to England from Assam, and documented in 1857.
It is native to the East Himalayas, found from southern Bhutan to northern Myanmar, and has been introduced to Bangladesh, Cuba, the Dominican Republic, and Haiti.
Text excerpted from the Wikipedia article Begonia rex by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.