Catharanthus roseus, more commonly known as the Madagascar Periwinkle, is a fascinating and iconic tropical plant. Native to Madagascar, this flowering species is distinguished by its delicate blossoms in vibrant shades of pink, white, and occasionally red. The plant thrives in warm and humid climates, making it ideal for enhancing tropical gardens such as those of the Au Bois Vert Botanical Garden, located in Ivato near Antananarivo.
Typically measuring between 30 and 100 cm in height, Catharanthus roseus, or Madagascar Periwinkle, features evergreen foliage with a deep, glossy green hue. Its flowers, simple yet elegant, have five wheel-shaped petals, evoking a sense of perfect natural harmony. Thanks to its adaptability, this plant thrives both in the ground and in pots, making it a versatile addition to a variety of landscape settings.
This botanical gem draws particular attention in botanical gardens for its exotic appearance and low maintenance requirements. Visitors to the Au Bois Vert Botanical Garden can admire the Madagascar periwinkle while enjoying the surrounding facilities, such as the lodge and the restaurant, which enhance this immersive experience.
With its nearly year-round blooming, Catharanthus roseus seamlessly blends into floral arrangements, adding a touch of vibrancy and color to every corner of the garden. It symbolizes not only the beauty of tropical nature but also resilience, thanks to its ability to survive in a variety of conditions, including poor soils.
Plant use
The Madagascar Periwinkle is more than just a decorative flower. This tropical plant also possesses remarkable medicinal properties, making it a valuable botanical treasure. For centuries, local populations in Madagascar have used this plant in traditional remedies to treat various ailments. Today, Catharanthus roseus has become a major focus of interest in the medical field. Its leaves and stems contain alkaloids such as vinblastine and vincristine—two essential compounds used in chemotherapy to treat certain cancers, including leukemia and lymphoma. This plant thus illustrates the deep connection between biodiversity and scientific research, reinforcing the importance of preserving spaces like the Au Bois Vert Botanical Garden, where such species can be studied and appreciated. In horticulture, the Madagascar Periwinkle is widely cultivated for its aesthetic appeal and resilience. It tolerates drought and adapts to various soil types, making it an ideal option for both novice and experienced gardeners. Within the Au Bois Vert Botanical Garden, it inspires landscaping ideas that combine beauty with sustainability. Finally, its easy maintenance and unmatched charm make it a highly sought-after plant in tropical hotels and restaurants, such as those near Ivato in Antananarivo. Visitors can thus immerse themselves in a lush setting while enjoying the comfort of local facilities.
Key information
| Common name | Madagascar Periwinkle |
| Scientific name | Catharanthus roseus |
| Origin | Madagascar |
| Natural habitat | Tropical and subtropical regions |
| Life cycle | Perennial in its natural habitat |
| Flowering period | All year round, with a peak in summer |
