Crotons are in the genus Codiaeum . They are shrubs that have brightly colored leaves, often many colors in one leaf. The leaves have many interesting shapes. Variegated patterns include spots, stripes, streaks, blotches, etc. Bright light is essential for rich color development in the leaves.
Some crotons are large and used as hedges or specimen plants in warm landscapes.
San Franciscos is another common name sometimes used for the crotons. Euphorbia pulcherrima . It is an excellent house plant and one that can be grown on and brought into flower year after year. In nature most poinsettias become large shrubs. If they are to be maintained in containers either choose a large container or practice pruning to keep the plants in bounds.