Crotons are evergreen shrubs that are only suited to very warm climates, making them popular yard plants in Southern Florida, according to Croton.org. They grow to about 10 feet tall and have large leaves that come in a range of colors. Crotons are only hardy to United States Department of Agriculture Plant Hardiness Zones 10 to 11. Like all shrubs, crotons need to be pruned and can actually handle heavy pruning at least once a year.
Cut off any dead, damaged or diseased foliage with the pruning shears at the base of the croton and dispose of it. Spray the cloth with bleach and wipe down the shears after each cut as to not spread any plant diseases.
Cut back 1/3 of the branches of the croton plant at the base of the plant. Remove most of the growth from the top of the plant, cutting back the heavily leafed branches by about ½ of their original size. This allows new growth to come up from the bottom.
Remove any over reaching branches and shape the croton plant how you desire.