The Croton Petra, commonly known as Josephs Coat is a colorful plant, with green and red patterned leaves bringing a splash of vivid color and jungle vibes to your home. Part of the euphorbia family, it is native to Asia and the Western Pacific region. One of the boldest houseplants around, croton offers fabulous foliage and is an easy to care plant. The scientific name of the Croton petra plant is Croton Variegatum Petra and is known and loved for its bright and beautiful foliage.