Gomphocarpus physocarpus

Gomphocarpus physocarpus E.Mey.

light
Full sun
water
Medium
tall
1.5 m
wide
76 cm

Apocynaceae

Formerly Asclepias brasiliensis, Asclepias physocarpa, Gomphocarpus brasiliensis

When it flowers

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

PetsNC State Extension lists it as toxic to dogs, cats and horses (25 Oct 2026)
PeopleNC State Extension lists it as mildly poisonous (flowers, fruits, leaves, roots, sap, seeds, stems) (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
ShrubKew's checklist, not yet checked
Climate
Seasonally dry tropicalKew's checklist, not yet checked
Wild in
S. Mozambique to S. AfricaKew's checklist, not yet checked
Light
Full sun (6 h or more)Read from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources
Height
1.2 m to 1.8 mRead from NC State Extension, one source
Spread
61 cm to 91 cmRead from NC State Extension, one source
Water
Average: moist, well drainedRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources
Flowers
WhiteRead from NC State Extension and Wikipedia, checked by a majority of its sourcesBacked by both sources. Sources differ: NC State Extension pink, white; Wikipedia white
Coldest it survives
-12.2 °C (USDA zone 8a)Read from NC State Extension, one source

Not known yet: heat, hottest it survives.

In other languages (3)

Chinese (Taiwan)
釘頭果, 鈍釘頭果
Chinese
钝钉头果
Simplified Chinese
钝钉头果

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.