Carrion Flower
Stapelia grandiflora
Stapelia grandiflora, commonly known as the Carrion Flower, is a unique succulent native to South Africa. Its striking star-shaped flowers and interesting odor attract attention, making it a fascinating addition to any collection.
Everything it needs
9 essentials at a glance
Watering
Water Stapelia grandiflora moderately, allowing the soil to dry out completely between waterings.
In the growing season (spring and summer), water every 2-3 weeks, reducing to once a month in fall and winter. Signs of over-watering include yellowing leaves and mushy stems, while under-watering may cause shriveling and drooping.
Light
This plant thrives in bright, indirect light but can tolerate some direct sunlight.
Ideally, place it near a south or west-facing window where it can receive 4-6 hours of light daily. Avoid prolonged exposure to harsh afternoon sun, which can scorch the leaves.
Soil
Stapelia grandiflora prefers a well-draining soil mix, ideally a cactus or succulent potting mix with a pH range of 6.0 to 7.0.
Ensure the pot has drainage holes to prevent water accumulation, which can lead to root rot.
Humidity
This plant does well in average household humidity levels but prefers slightly drier conditions.
To increase humidity, consider placing a humidity tray filled with water and pebbles beneath the pot. Signs of humidity stress include browning leaf edges and wilting.
Temperature
The ideal temperature range for Stapelia grandiflora is between 70-85°F (21-29°C) during the day and not dropping below 50°F (10°C) at night.
It is best suited for USDA hardiness zones 10-11, as it is not frost-tolerant and should be protected from extreme cold.
Fertilizing
Use a balanced, diluted liquid fertilizer (NPK ratio of 10-10-10) every 4-6 weeks during the growing season.
Reduce or stop fertilizing in fall and winter. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune Stapelia grandiflora in late winter or early spring to maintain shape and remove any dead or damaged stems.
Use clean, sharp scissors or pruning shears. Deadheading is not necessary, as the plant's flowers are short-lived.
Repotting
Repot every 2-3 years or when the plant outgrows its pot, indicated by roots emerging from the drainage holes.
Choose a pot that is 1-2 inches larger in diameter. Carefully remove the plant, trim any damaged roots, and place it in fresh potting mix. Water lightly after repotting.
Propagation
Propagation can be done through stem cuttings or seeds.
For stem cuttings, take a healthy segment, let it dry for a few days to form a callus, then plant it in well-draining soil. Water sparingly until roots develop, typically taking 2-4 weeks. Best timing for propagation is in spring.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or poor drainage.
How to fix it
Allow the soil to dry out completely before watering again, and ensure the pot has adequate drainage.
Shriveling stems
Why it happens
Under-watering or insufficient light.
How to fix it
Increase watering frequency and ensure the plant receives adequate light.
Root rot
Why it happens
Excess moisture in the soil.
How to fix it
Remove the plant from its pot, trim away any rotten roots, and repot in fresh, dry soil.
Browning leaf edges
Why it happens
Low humidity or inconsistent watering.
How to fix it
Increase humidity levels and maintain a consistent watering schedule.
Pest infestations (e.g., mealybugs)
Why it happens
Poor air circulation or high humidity.
How to fix it
Treat with insecticidal soap or neem oil, and improve air circulation around the plant.
Care through the year
Spring
In spring, increase watering frequency as the plant begins to grow actively. Consider applying a diluted fertilizer every 4-6 weeks to promote healthy growth.
Summer
During summer, ensure the plant receives adequate light and water every 2-3 weeks. Monitor for pests, as warmer weather can attract them.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Stop fertilizing and prepare for cooler temperatures.
Winter
In winter, keep the plant in a warm location and water sparingly, allowing the soil to dry out completely. Avoid exposure to frost.
Toxicity & Safety
Stapelia grandiflora is non-toxic to pets and humans. However, ingestion of any part may cause mild gastrointestinal upset. Always keep plants out of reach of small children and pets.
Good to know
How often should I water my Stapelia grandiflora?
Water your Stapelia grandiflora every 2-3 weeks during the growing season, allowing the soil to dry out completely between waterings.
Why are my Stapelia grandiflora leaves turning yellow?
Yellow leaves are often a sign of over-watering or poor drainage. Ensure the pot has drainage holes and allow the soil to dry out before watering again.
What light conditions are best for Stapelia grandiflora?
Stapelia grandiflora prefers bright, indirect light but can tolerate some direct sunlight. Aim for 4-6 hours of light daily.
Can I propagate Stapelia grandiflora from cuttings?
Yes, you can propagate Stapelia grandiflora from stem cuttings. Allow the cut end to callus for a few days before planting in well-draining soil.
What temperature is ideal for Stapelia grandiflora?
The ideal temperature range is 70-85°F (21-29°C) during the day, with nighttime temperatures not dropping below 50°F (10°C).
How do I know when to repot my Stapelia grandiflora?
Repot your Stapelia grandiflora every 2-3 years or when you see roots emerging from the drainage holes, indicating it has outgrown its pot.
Is Stapelia grandiflora toxic to pets?
No, Stapelia grandiflora is non-toxic to pets and humans, but ingestion may cause mild gastrointestinal upset.
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