Croton Petra is a beautiful, hardy plant that can add a splash of color to any garden. It is relatively easy to care for and can be planted with a variety of other plants. Some good companions for Croton Petra include: impatiens, begonias, ferns, and even other Crotons! When planting, make sure to give each plant enough room to grow. Croton Petra can reach up to 3 feet in height and 2-3 feet in width, so be sure to leave plenty of space between plants.