Place croton in a sunny location such as an eastern, southern, or western window. If a croton is getting too little light, its newer leaves will be less colorful.
Keep the soil evenly moist, but let it dry out between waterings.
If humidity is low in your home, mist around the leaves with water once a week or keep a tray of wet gravel near the plant.
Croton leaves are dust magnets. Gently wipe the leaves with a moist cloth twice a month to keep them clean and dust-free.
Fertilize the plant in spring and summer.
New croton plants can be started with 4 to 6 inch long stem cuttings. Remove the bottom leaves and place the cutting in a glass of water. After roots have formed, plant in a small pot.
Repot the plant in the spring if it has grown too large for its current pot.