Begonia amphioxus
Begonia amphioxus
Also called Both-ends begonia
Houseplant · BegoniasIT IS A LIMESTONE PLANT and wants a gritty, almost alkaline mix — the opposite of the peaty compost the rest of this genus is sold in. Repot it out of what it came in.
Care at a glance
- Ease
- Hard
- Water
- Every 6 daysKeep it moist — water at the first hint of dryness — don't wait for a dry pot.
- Light
- Medium indirect
- Feed
- Every 30 days
- Humidity
- High
- Hardiness
- Indoors, or out in high summer RHS H1B, to 10°C
- Size
- 0.3 m tall · 0.3 m across
- Lifecycle
- Perennial
- Origin
- Sarawak, on Borneo
Is it safe for pets and people?
Affects dogs, cats, horses. Signs: vomiting and drooling in dogs and cats; kidney failure in grazing animals. The part below ground is the most toxic.
The whole plant; the underground parts most of all.
Begonias carry soluble oxalates, concentrated in the tubers. That is documented but is not in either catalogue this bank holds — ASPCA answers only about animals, and the RHS harmful list does not carry Begonia at all.
Checked against ASPCA and RHS on 2026-09-21.
A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.