The Forest Nightshade of Robertson (Solanum prinophyllum)

Tucked along the fringes of rainforest, Yarrawa brush and regenerating bush in the Robertson area, you might spot the striking purple blooms of Solanum prinophyllum, commonly known as Forest Nightshade.

This spiny native shrub is part of the tomato family and is a resilient feature of the Southern Highlands’ cool temperate landscape.

Thorns on the Solanum prinophyllum (Common name - Forest Nightshade)

Recognisable by its star-shaped purple flowers and bright yellow centres, S. prinophyllum typically flowers in spring and early summer, followed by small green berries. The plant is armed with fine prickles along its stems and leaves—an important feature for those looking to protect their garden.

Image via NatureMpr

While care must be taken—parts of the plant are toxic if ingested—Forest Nightshade has become a handy ally for local gardeners. Its natural spines can be used as a living barrier to deter wildlife. When planted or placed as a natural ring around the base of fruit trees, it can help keep possums and other curious nibblers at bay, offering a chemical-free option for crop protection.

In the wild, S. prinophyllum plays a role in supporting native biodiversity, offering habitat and seasonal interest. If you’re bush regenerating, creating a native garden, or simply want to explore the practical uses of local flora, this underrated plant is worth a second look.

If you'd like to learn more about our special natives and get involved in their protection and regenerations please visit our friends at THE ROBERTSON ENVIRONMENT PROTECTION SOCIETY's website here.