Aristolochia gigantea

Aristolochia gigantea Mart. & Zucc.

light
Sun–part
water
Medium
tall
7.7 m
wide
1.4 m

Aristolochiaceae

Formerly Howardia gigantea

When it flowers

Not known yet in the tropics: too few flowering observations to read a season from.

PetsNo pet-safety information yet
PeopleNC State Extension lists it as very poisonous (all parts) (25 Oct 2026)

If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.

Something wrong with it?

About it

Grows as
ClimberKew's checklist, not yet checked
Climate
Wet tropicalKew's checklist, not yet checked
Wild in
E. & S. BrazilKew's checklist, not yet checked
Light
Full sun to part shade (3 h or more)Read from NC State Extension and RHS, checked by a majority of its sourcesBacked by both sources
Height
6.3 m to 9.0 mRead from NC State Extension and RHS, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension 15–20 ft; RHS 8–12 m
Spread
91 cm to 1.8 mRead from NC State Extension, one source
Water
Average: moist, well drainedRead from NC State Extension and RHS, checked by a majority of its sourcesBacked by both sources
Flowers
CreamRead from NC State Extension and RHS, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension cream, red, white; RHS cream, purple
Coldest it survives
4.5 °C (USDA zone 11a)Read from NC State Extension and RHS, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: NC State Extension -1.1 °C; RHS 10 °C

Not known yet: heat, hottest it survives.

In other languages (2)

Chinese
巨花马兜铃, 大马兜铃
Slovenian
orjaški podraščec

Where this comes from

A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.