Nightshade, scientifically known as Solanum, is a highly regarded ornamental plant, much loved for its deep blue blossoms that bring a splash of brightness to tropical and Mediterranean-style gardens. Native to South America, this shrubby plant belongs to the Solanaceae family, which also includes well-known species such as the tomato and potato. In the botanical garden of Au Bois Vert, it stands out thanks to its graceful form and strikingly vibrant flowers.
This robust plant grows as a small shrub, typically reaching between 1.5 and 2 metres in height. Its semi-evergreen leaves are a soft green, while its trumpet-shaped flowers display rich shades of blue and violet, highlighted by a vivid yellow centre. Flowering usually begins in spring and continues into autumn, offering a long-lasting display of vivid colour throughout the warmer months.
Nightshade thrives in sunny, well-drained locations, making it an excellent choice for green spaces in tropical climates such as that of Ivato, near Antananarivo. It can be grown both in the ground and in containers, adding versatility to its ornamental appeal. Within landscape design, it is commonly used for low hedging or to adorn terraces and balconies.
Low-maintenance and undemanding, this plant requires minimal care. Regular watering, light pruning after flowering, and a spot sheltered from cold winds are generally enough to keep it healthy and flourishing.
Plant use
Nightshade plays a prominent ornamental role in gardens, particularly in warm-climate regions such as Ivato and Antananarivo. Its long and abundant flowering season enhances green spaces beautifully, whether in a botanical garden or within the grounds of charming accommodations like Au Bois Vert. Beyond its visual appeal, this plant is known for attracting pollinators—especially butterflies and bees—making it a valuable addition to any garden aiming to support local biodiversity. Visitors to a restaurant or lodge can also appreciate its presence, as it brings a calming, natural touch to any outdoor setting. Solanum is also a popular choice for creating flower beds or low hedges. Thanks to its rapid growth, it offers visible results in a relatively short time. It can be grown in pots too, making it ideal for decorating patios or verandas—a practical option for those wishing to bring nature into their daily lives without requiring large spaces. In addition to its decorative uses, this plant is widely featured in botanical gardens due to its educational value. It serves as a way to teach visitors about tropical species and their specific needs, while simultaneously providing a lush and tranquil setting for strolls or outdoor events.
Key information
| Common name | Nightshade |
| Scientific name | Solanum |
| Origin | South America |
| Natural habitat | Subtropical and tropical regions |
| Life cycle | Perennial |
| Flowering period | Spring to autumn |
