The Stapelia It is one of the most unique and appreciated succulent plants in the world of gardening, both by collectors of succulent plants and by lovers of botanical rarities. Its exotic appearance, the unique character of its star-shaped flowers and the curious aroma they give off have made Stapelia an undisputed star on terraces and specialized collections. In this article, we present a complete, exhaustive and detailed guide to the Stapelia plant care, including everything from cultivation tips to advanced advice for achieving spectacular flowering and maintaining a healthy plant year-round.
General characteristics of Stapelia
The gender stapelia belongs to the family apocynaceae and has around 43 recognized species. They are perennial succulent plants Native to southern and southwestern Africa, they are specially adapted to survive in dry, warm environments. Their fleshy, angular stems can develop intense green hues and even reddish or grayish shades in some varieties.
The flowers of Stapelia are, without a doubt, its main attraction. They appear at the base or along the stems, depending on the species, and can measure from 5 to 40 cm in diameter in the largest species. Their star-shaped shape and intense hairiness on the petals are unmistakable. A unique characteristic of Stapelia is the intense aroma the rotting flesh smell emitted by its flowers, especially on warm days. This smell has a crucial function: attracting flies and other pollinating insects, as the plant is entomophilous par excellence.
Some common names of Stapelia are lizard flower, African star, chameleon or directly carrion flower, due to the peculiar fragrance of its flowers.
Main species of Stapelia
- Stapelia grandiflora: Considered one of the most beautiful species, it has robust stems up to 30 cm and flowers up to 15 cm in diameter with a dark purple-brown color, with white hairy margins.
- Stapelia gigantea: It stands out for the size of its flowers, which can reach 40 cm, with creamy-yellow petals striped with red and dense hairiness.
- Stapelia variegata (also called Orbea variegata): Widely used in commerce, with branched stems and 5-9 cm flowers in yellow and reddish-brown tones.
- Stapelia hirsuta: With erect stems and flowers up to 20 cm long, with a hairy surface and a striking purple hue.
- Stapelia flavopurpurea: Its stems tend toward blue-green, and the flowers are star-shaped, bright green, or yellow and reddish in color. Interestingly, this species' aroma is usually pleasant.
- Stapelia leendertziae: Less common species, recognizable by its bell-shaped, red-purple flowers.
- Stapelia erectiflora: Smaller in size, with stems up to 15 cm and small, purple, densely hairy flowers.
Why choose Stapelia? Ornamental value and interesting facts
The main attraction of Stapelia lies in the spectacular nature of its flowers, which mimic the appearance and smell of rotting meat to ensure pollination. This trait has sparked the fascination of many collectors and succulent plant enthusiasts. Furthermore, the Stapelia genus is associated with myths, stories, and botanical curiosities, such as its use in gardens and its prominent use on social media and specialized media due to its striking aesthetic.
It is important to note that the Stapelia is toxic to pets, so it's recommended to take extreme precautions if you share a home with dogs or cats that are prone to chewing plants. Contact with or ingestion of these plants can be harmful to their health.
Ideal growing conditions for Stapelia
- Luz: It prefers very bright environments, but it is essential to avoid direct exposure to the sun during the central hours of summer. In cooler climates or during autumn and winter, it can receive direct sun to enhance flowering.
- Temperature and humidity: Stapelia thrives in warm, dry environments. Temperatures should never drop below 10 ºC-13 ºCThe hardiest species can tolerate occasional drops, as long as the substrate remains dry. Humidity should be low, especially indoors. In winter, it is advisable to let it rest at mild temperatures.
- Ventilation: In the warmer months, ventilating the space helps reduce pest infestation and prevents moisture buildup in the substrate.
Optimal soil and substrate for Stapelia
Un well drained soil It's essential for the health of Stapelia. You can prepare a specific mix for cacti by combining universal substrate with coarse sand or perlite, in equal proportions. It's advisable to cover the top 2 cm of the substrate with gravel, thus avoiding prolonged contact of the plant's neck with moisture, which can cause what is known as "black rot."
At the bottom of the pot, try placing pieces of baked clay or volcanic rock to help drain excess water. The container should be wider than it is deep, allowing the plant to expand laterally.
Watering Stapelia: Frequency and Tips
- Spring and summerDuring the growing and flowering season, water generously, ensuring the substrate drains well and never remains waterlogged. Wait until the top layer is dry before watering again.
- Autumn and winterDrastically reduce watering frequency. Maintain a constant, low humidity level, except during periods of intense cold, when you can suspend watering completely for a few weeks if the plant doesn't show signs of dehydration.
- CautionExcess water is the main enemy of Stapelia. Root and stem rot is common in humid environments or with overwatering. If symptoms of soft or blackened stems appear at the base, it is best to let the substrate dry and remove the affected parts.
Fertilizing and fertilizing Stapelia
- During the spring and summerAdd liquid fertilizer for cacti or succulents every three weeks, diluting the dosage to half the amount recommended on the package. The presence of micronutrients (magnesium, iron, manganese, copper, zinc, boron, and molybdenum) ensures balanced development and abundant flowering.
- En autumn and winter, completely suspends the subscription.
Foliar feeding can also be beneficial, especially if done by spraying the leaves with the diluted solution after watering. This helps improve absorption and prevents excessive concentrations in the substrate.
Stapelia transplant: when and how to do it
- Ferquency: Ideally, repot every one or two years, preferably in spring, or when you notice that the stems are occupying the entire edge of the pot.
- ProcedureUse a slightly larger pot, never too large, to avoid excess water retention. Make sure not to overdisturb the roots.
- If you have just purchased the plant, wait at least 15 days before transplanting to avoid the Stress due to the change of environment.
After transplanting, water lightly and wait a few days before fertilizing or watering deeply again.
Pruning and cleaning Stapelia
The Stapelia could not regularly. Maintenance consists of removing dry, damaged, or pest-affected stems to prevent the spread of disease. Always do this with disinfected tools and preferably sterile.
Stapelia propagation: cuttings and seeds
- by cuttingThis is the fastest and most reliable method. Cut healthy segments during the period of active growth. Let the cuts dry for 1 to 5 days to heal before planting.
- Plant the cuttings in a moist mixture of coarse sand and cactus potting soil. Keep the pot in a warm, shaded, and well-ventilated location. When you see that the cutting has rooted and is resuming growth, transplant it to its final location.
- By seedSow in spring, using a mixture of special cactus potting mix and fine sand. Keep the soil moist and temperatures mild. Germination can occur within a few days or weeks. Plants grown from seed may take 2 to 3 years to flower, or longer for larger species.
Stapelia Flowering: Secrets and Tips
La flowering of Stapelia It usually occurs during the warm season, producing flowers that may last a few days, but which are produced in rotation, prolonging the display for several weeks. To achieve successful flowering, it is essential to respect light requirements and winter dormancy, as well as to avoid excess nitrogen in the fertilizer, which favors stem development at the expense of flowers.
Indoors, Stapelia may flower less abundantly, so it is recommended to alternate periods outdoors and indoors, avoiding sudden changes.
Pests and diseases of Stapelia
- Root and stem rot: Mainly caused by overwatering. It's vital to remove affected areas and treat with a sulfur-based fungicide if necessary. Once the damaged parts have been removed, allow the plant and substrate to dry completely.
- Cottony mealybug: Examine the underside of the stems. If you notice white, cotton-like spots, remove them manually using a cotton ball soaked in alcohol or wash the plant with warm water and mild soap, rinsing thoroughly afterwards.
- In the case of severe infestations or outdoor plants, you can resort to specific insecticides for succulents, but always as a last resort.
- Other common problemsStem wilting is often caused by extreme dryness or prolonged underwatering; correct this by moisturizing in moderation.
As a preventative measure, it is advisable to spray the plant every 20 days with potassium soap and neem oil, and apply diluted diatomaceous earth to limit the spread of pests.
Additional tips for growing Stapelia
- The Stapelia They grow best in hanging pots or on brightly lit shelves. They allow detailed observation of the blooms and facilitate water drainage.
- Be sure to periodically check the condition of the root system. As the plant grows, the weight of the stems can overload the roots if they are not well anchored.
- Avoid watering from above the plant. Always water directly into the substrate to avoid excessive moisture on the neck and stems.
- To keep your specimens healthy, you can also consult our guide on how to care for succulents at home.
Curiosities and botanical value of Stapelia
Name stapelia It was awarded in honor of the physician and botanist Johannes van Stapel, and has a long history of fascination among succulent plant scholars. In addition to its ornamental value, Stapelia are an excellent example of convergent evolution and adaptive strategies in nature, as they have developed unique mechanisms to ensure their pollination.
Nowadays, some species such as orbea variegata They are considered a priority for conservation due to environmental pressure and the degradation of their native habitats.
Stapelia can be easily hybridized between species, giving rise to new flower shapes and combinations, thus increasing the attractiveness of the collection.