On days of intense heat, plants suffer, but not all of them. Some, like the Dianthus pink kisses or the desert rose , adapt perfectly to the heat. Specifically, the desert rose is one of the ideal plants to add to the terrace when summer arrives because of its resistance to high temperatures and its decorative flowers.
This outdoor plant, also known by its scientific name Adenium obesum , is perfect for the summer season. It's hardy and long-lasting , with flowers that brighten up any patio or terrace. It can also be kept indoors as long as it receives plenty of light . Below, we'll tell you everything you need to know to care for it and enjoy its blooms.
Characteristics of the desert rose
The desert rose is a shrub typical of sub-Saharan Africa and the Arabian Peninsula . It is distinguished by its thickened basal stem (caudex) with a very peculiar shape, from which grayish branches and leathery, glossy leaves emerge , concentrated at the tips. At the apex appear tubular flowers three to five centimeters in diameter, in shades of red, fuchsia, pink, or white , sometimes with gradients and a cream or yellow throat.
In its natural habitat, it can grow to over two meters tall , but in pots it typically reaches between 30 and 60 cm , making it perfect for patios and succulent collections. Due to its small tree-like appearance and slow growth, it is also used as a bonsai.
There are several subspecies in Africa, including: Adenium boehmianum , A. obesum , A. oleifolium , A. socotranum , A. somalense and A. swazicum.
desert rose care
To keep your plant healthy and blooming vigorously, pay attention to these key points:
- Light: Needs to 6-8 hours of direct sunlight daily. Indoors, place it next to a bright window. lack of light reduces flowering and weakens stems.
- Temperature and humidity: Ideal between 20 and 35 ° C. Avoid exposing it below 10 ° C. Prefers environments dry and ventilated, without excess moisture.
- Irrigation: In growth (spring-summer), water when the substrate is completely dry. At rest (autumn-winter), it reduces to once a month or less. Water deeply and let the excess drain; waterlogging causes decay.
- Substratum: Use a very draining mix: 50% cactus soil, 25% coarse sand or gravel y 25% perlite or pumice. pH between 6,0 and 7,5. Essential pot with drainage holes.
- Fertilization: In the active season, apply a fertilizer for succulents or a NPK 10-30-10 each 4-6 weeks to enhance flowering. Suspend in winter.
- Pests: You may suffer cottony mealybug y Red spider. Watch the underside of the leaves and treat with potassium soap o neem oilAvoid excess moisture to prevent fungus.
- Toxicity: La sap is very toxic; handle with gloves to avoid irritation.
Where to put it
Outdoors, choose a sunny spot (south or west facing). In cold climates, protect it from drafts and low temperatures. Indoors, place it near bright windows and avoid prolonged shade.
To enhance its appearance, use clay or ceramic pots with excellent drainage. For decoration, combine it with cacti and succulents , or with lavender and santolina if you're looking for a Mediterranean touch.
What to do to make the desert rose bloom?
- Continuous sun: Intense light is key. Keep the leaves clean of dust to improve uptake.
- Controlled irrigation: Avoid excess; alternate deep watering with periods of dry.
- Phosphorus fertilizer: Use fertilizer for succulents or NPK 10-30-10 in moderation during the active season.
- Light pruning: In spring, remove long or weak branches to stimulate new shoots.
- Suitable pot: Better adjusted to the caudex and with excellent drainage; transplant each 2-3 years.
- Winter break: Reduce watering and do not fertilize to promote growth. floral induction later.
- Grafting on oleander: It is an advanced technique that can improve flowering if mastered.
It can be propagated by seeds or cuttings . Sow seeds in well-draining substrate, in a warm environment with indirect light, maintaining moderate humidity until germination. For cuttings, cut a healthy branch (approximately 10 cm), allow it to callus over for 2-3 days , and plant in cactus potting mix; using rooting hormone is helpful. Wear gloves due to the toxicity of the sap.
Common problems and solutions
- Yellow sheets: It usually indicates excess irrigationCheck drainage and space out waterings.
- Does not bloom: Lack of light o nutrients. Improve exposure and fertilize in season.
- Root or stem rot: Caused by ponding. Change the substrate to a more mineral one and reduce the frequency of watering.