Polka dot begonia vs Chinese money plant

Begonia maculata · Pilea peperomioides

Pet safety: Chinese money plant is listed non-toxic to cats and dogs; Polka dot begonia is toxic (soluble calcium oxalates).

Why these two get mixed up

Chinese money plant is recorded here as a pet-safe alternative to Polka dot begonia, so the question is usually whether the swap is actually a fair one.

Polka dot begonia (Begonia maculata) — **Polka dot begonia** — Begonia maculata. Photograph by Cliff from I now live in Arlington, VA (Outside Washington DC), USA, Wikimedia Commons , CC BY 2.0.

Chinese money plant (Pilea peperomioides) — **Chinese money plant** — Pilea peperomioides. Photograph by Husky, Wikimedia Commons , CC0.

	Polka dot begonia	Chinese money plant
Scientific name	Begonia maculata	Pilea peperomioides
Family	Begoniaceae	Urticaceae
Light floor	Medium	Medium
Water	5–10 days	6–11 days
Humidity floor	45%	40%
Mature height	12–48 in	8–18 in
Habit	upright	upright
Growth rate	fast	fast
Difficulty	Moderate	Easy
Toxic to pets	Yes	No
Typical price	$15–45	$12–35

Highlighted cells are where the two actually differ. Everything else they share.

The differences that matter

Pet safety

This is the difference that matters most. Chinese money plant is listed non-toxic to cats and dogs; Polka dot begonia is toxic (soluble calcium oxalates). If the two are sold under the same name, a mislabelled plant is a genuine risk in a house with animals.

Mature size

Polka dot begonia reaches about 48 inches; Chinese money plant tops out near 18. Buying the wrong one for a shelf means rehoming it in a year.

Not even related

Polka dot begonia is Begoniaceae, Chinese money plant is Urticaceae. They share a shop label and nothing else — different families, different continents, different care.

Which should you buy?

With a cat or dog in the house, take Chinese money plant. The other is toxic, and if the shop label is wrong you will not know which you have brought home.
In a dim room, take either — both have a medium light floor.
If you forget to water, take Chinese money plant, which goes 8 days between drinks.
If it is your first plant, take Chinese money plant, at 2 of 5.
For a small shelf, take Chinese money plant, which stops around 18 inches.

Full entries

Polka dot begonia — care fields with sources, toxicity with every authority consulted, propagation and diagnosis. Chinese money plant — the same.

Sources

This database's own care records for Begonia maculata and Pilea peperomioides — every figure compared above.
Royal Botanic Gardens Kew, Plants of the World Online — accepted names and families for Begonia maculata and Pilea peperomioides
ASPCA Animal Poison Control — toxicity classification for both, cited on each species entry
Photographs: Wikimedia Commons, individually credited and licensed above

Compiled and edited by Tony Valcarcel · 2026-09-12
Every comparison above is drawn from a recorded field. Where the honest distinguisher is visual we show both photographs rather than describing a leaf we have no field for. How this is sourced.