Strobilanthes dyeriana also known as persian shield or royal purple plant is a species of flowering plant in the acanthus family Acanthaceae. Growing to 1 m tall and broad, it is a tropical evergreen shrub, cultivated for its dark green foliage with bright, metallic-purple stripes radiating outward from the central leaf vein. In proper conditions, it will also produce pale purple flowe It prefers a warm, humid position in good light. As the colour fade with age, it requires regular pruning in order to have new leaves growth.