Apple of Peru or Nicandra is a monotypic genus of flowering plants in the nightshade family containing the single species Nicandra physalodes. It is known by the common names apple-of-Peru and shoo-fly plant. It is native to Peru, and it is known elsewhere as an introduced species and sometimes a weed. It is also kept as an ornamental plant.

Plants grow to 1 metre tall and are vigorous with spreading branches and ovate, mid-green, toothed and waved leaves. The flowers are bell-shaped and 5 centimetres or more across, pale violet with white throats. The flower becomes lantern-like towards the end of its bloom. The plant is thought to have insect repellent properties