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Carrion Flower

Stapelia grandiflora, Apocynaceae

Sources last read 14 September 2026.

Not yet rated How forgiving it is has not been judged here yet.

Also called Carrion Plant, Giant Toad Plant, Giant Zulu, Starfish Cactus and Starfish Flower.

Carrion Flower (Stapelia grandiflora), the whole plant.
KENPEI, CC BY-SA 3.0 · Wikimedia Commons

Toxicity is partly unassessed

  • Not assessed for cats. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for dogs. This plant is not on the ASPCA list. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.
  • Not assessed for people. NC State Extension publishes no harm statement for this plant. That is not a finding of safety: none of the sources read for this site gives an answer either way. Treat it as unknown.

What the sources say about its care

Light
Full sun, Partial Shade
NC State Extension · read 13 September 2026
Water
Good Drainage, Moist
NC State Extension · read 13 September 2026
Humidity

No source read publishes a humidity figure for any plant on this site. What follows is general guidance for foliage plants.

Most foliage plants prefer more humidity than a heated room gives; succulents are named as an exception
Penn State Extension · read 13 September 2026
Soil
Loam (Silt), Sand; pH Neutral (6.0-8.0)
NC State Extension · read 13 September 2026
Toxic to cats
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Toxic to dogs
Not on the ASPCA list. That is not a finding of safety.
ASPCA · read 13 September 2026
Harmful to people
No record of poisoning in people is listed for this plant; that absence is not evidence it is safe.
NC State Extension · read 13 September 2026

Routine care

Watering
Let the growing medium dry out before watering again.
NC State Extension · read 13 September 2026
Repotting
It prefers being rootbound, so a new pot may be needed only roughly every 2 to 3 years. Propagate from seed or stem cuttings.
NC State Extension · read 13 September 2026
Propagation
It prefers being rootbound, so it may need repotting only once every 2 or 3 years. Seeds or stem cuttings can be used for propagation.
NC State Extension · read 13 September 2026

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About the plant

Stapelia grandiflora is a species of flowering plant in the genus Stapelia of the family Apocynaceae. It is commonly referred to as the carrion plant, starfish flower, giant toad plant, or starfish cactus, although it is not related to cacti at all. This "carrion plant" nickname can also refer to similar Stapelia species as well as members of related genera, including Stapelia gigantea and Orbea variegata. Stapelia grandiflora sometimes also goes by the name of Stapelia flavirostris. The plant is native to South Africa, including the Northern Cape, Eastern Cape, and Free State.

From Wikipedia, CC BY-SA 4.0 · read 13 September 2026

Native range
S. Africa
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
South Africa
NC State Extension · read 13 September 2026
Climate
desert or dry shrubland
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Growth form
succulent subshrub
World Checklist of Vascular Plants, June 2026 release, CC BY.
Kew WCVP · read 13 September 2026
Herbaceous Perennial, Succulent; habit dense, erect, multi-stemmed, spreading
NC State Extension · read 13 September 2026
Size
Height 3–12 in; width 12–36 in
NC State Extension · read 13 September 2026
Flowering
Flowers brown/copper, purple/lavender, red/burgundy; blooms in fall, summer
NC State Extension · read 13 September 2026

Other Stapelia

More of the Apocynaceae family

Plants with similar care

Sources

What this does not cover

The figures above are what published sources say, not measurements of the plant in your room. They say nothing about your pot size, your water, the season, or how far from the glass the plant stands, and those decide more than any figure here does.

Humidity has no species figure because no source read for this site publishes one, and the only temperature published for this plant is a cold floor. The simulator fills those gaps with general figures for its kind of plant, marked as general and listed on how we read sources. Where a toxicity row says the plant was not assessed, that is the absence of a finding and not a finding of safety.

If something is already wrong, the diagnosis tool asks about the soil, the window and the watering, which is where the answer usually is.