Polka dot begonia
Begonia maculata
A cane begonia from the Atlantic rainforest of southeast Brazil, grown as a houseplant for its long, wing-shaped, olive to dark green leaves spotted with silver above and red beneath, carried on upright stems jointed like bamboo. NC State Extension lists it among the cane-type begonias at 2 to 3 feet tall, with drooping clusters of white to pink flowers with small yellow centres, and Wikipedia explains that the silver spots are air trapped in the skin of the leaf. Flora do Brasil records it as endemic to Brazil. Outside USDA zones 10 and warmer it lives indoors, in bright light out of direct sun, in humid air and in moist but well-drained soil, since begonias rot when overwatered. It is toxic to pets: the ASPCA lists begonias as toxic to dogs, cats and horses, and NC State Extension says the sap can irritate skin.
Climate fit: narrow (13/100)
Container
Focal point
Light
Part shade
Water
Moderate water
Mature size
2-3 ft tall · 12" apart
Hardy in zones
10a-11b
mild to nearly frost-free winters
Native in Illinois
No
Not edible; grown only as an ornamental.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Won't grow here
Zone 7a
Plotwright
0°F to 5°F
Won't grow here
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✕
Out of range today and still out of range in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
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Plant this, not that
Better fit for this place
For Chicago, IL, these are replacement suggestions: similar plants with a stronger hardiness fit now and/or in 2050.
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Polka dot begonia educator packet
A cane begonia from the Atlantic rainforest of southeast Brazil, grown as a houseplant for its long, wing-shaped, olive to dark green leaves spotted with silver above and red beneath, carried on upright stems jointed like bamboo. NC State Extension lists it among the cane-type begonias at 2 to 3 feet tall, with drooping clusters of white to pink flowers with small yellow centres, and Wikipedia explains that the silver spots are air trapped in the skin of the leaf. Flora do Brasil records it as endemic to Brazil. Outside USDA zones 10 and warmer it lives indoors, in bright light out of direct sun, in humid air and in moist but well-drained soil, since begonias rot when overwatered. It is toxic to pets: the ASPCA lists begonias as toxic to dogs, cats and horses, and NC State Extension says the sap can irritate skin.
Scientific name
Begonia maculata
Plant type
perennial
Hardiness
10a-11b
Light
part-shade
Moisture
moderate
Spacing
12"
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Polka dot begonia (Begonia maculata). Retrieved from https://plotwright.com/plants/begonia-maculata
Sources used for this record
This record is compiled from the sources below.








