Croton plants (Codiaeum variegatum) are evergreen tropical flowering plants with stunningly colorful red, green and yellow patterned leaves. Potted croton houseplants typically don’t grow taller than 3 ft. (1 m) indoors. As long as you get their care right, croton plants will grow vibrantly colored, bushy foliage for many years.   Humidity, along with the lack of bright light, also affects the color of the leaves. Keep the humidity level at 40 to 80 percent. If the humidity isn't high enough, the plant may drop some of its leaves. Keep them evenly moist in the summer and reduce watering in the winter to biweekly. Mist frequently during the growth period. A well-drained potting soil is perfect.
 
Remarks : Keep your croton out of reach of children and pets. All parts of the plant are toxic and may cause diarrhea or vomiting.