They are very colorful plant for Indore use. The leaves are large and broad and gradually change color as it matures. They need fairly high light to maintain the vibrant colors. The plants best color will develop in bright light under cooler temperatures. Cold injury normally shows as leaf dropping soon after periods of cold weather.

Pruning Information

Crotons may be pruned closely during spring or other mild periods of the year. Crotons may attain a height of 8-10 feet, and be likely to produce the heaviest flora at the top of the plant. It is wise to cut back rather heavily to force new flora lower down on the stem. It is best to trim about one-third of the twigs, then wait until new growth has started before pruning again. This keeps the Croton plant more uniform in shape and more attractive during the pruning process. Pinching out the tips of Crotons will encourage multi-branching and therefore, a better-looking, fuller specimen.

Growing Information

Crotons develop their finest leaf colors when planted in shifting sun. Plants placed in shade or semi-shade tends to increase a large amount of green color. Soil should be enriched with compost, muck, or peat moss and the plants fertilized regularly with a general purpose fertilizer, preferable one that has a high acidic rating, such as an azalea fertilizer. Also, up until September, use of high nitrogen is favored. After that use a fertilizer that has more phosphorus and potash.

Source: http://www.crotons.org/croton_info.htm