Stapelia grandiflora

Starfish Flower

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Taxonomy

Common Names

Starfish FlowerCarrion Flower

Context

nativeRegion

Southern Africa (primarily South Africa).

usdaZones

10–11

companionPlants

Hoodia, Huernia, Euphorbia, Aloe

culturalUses

Grown primarily as an ornamental for unusual flowers. No significant medicinal or edible uses.

Care

LightBright, indirect light is ideal. Tolerates some direct sun, especially in morning or late afternoon. Avoid deep shade.

WateringAllow soil to dry out between waterings; water thoroughly but infrequently. Very drought-tolerant. Avoid overwatering, which causes rot.

SoilWell-draining, sandy or gritty cactus/succulent mix. Good aeration is vital.

FertilizerFeed lightly with dilute cactus fertilizer during the active growing season (spring and summer); once a month suffices.

HumidityPrefers dry to moderate humidity. Avoid overly humid environments.

TemperatureThrives in warm temperatures (20–30°C/68–86°F). Protect from frost; minimum 10°C (50°F).

HabitSucculent with upright, angular, green stems in clumps.

Mature Size15–25 cm (6–10 in) tall.

Growth RateModerate grower under optimal conditions.

BloomingProduces large, star-shaped, hairy, maroon flowers in summer to autumn. Flowers have a carrion scent.

DormancyWinter dormant; drastically reduce watering during this period.

MethodsStem cuttings, Seeds

DifficultyEasy by stem cuttings, moderate by seeds

Best SeasonSpring or early summer

PruningRemove dead or shriveled stems to encourage healthy growth. Prune after flowering if needed.

RepottingRepot every 2–3 years in fresh soil, preferably in spring. Use a shallow, wide pot.

Pests & DiseasesSusceptible to root/stem rot from overwatering; occasional mealybugs or scale insects.

ToxicityGenerally non-toxic to humans or pets.

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