Croton has gotten very small leaves
I have had a Croton for many years. It grew and thrived but seemed to need a larger pot to keep thriving. It is in a very large pot now but I have not moved it to a larger one yet because pretty soon, it would get unmanageable for me. Its leaves, which used to get brightly colored and large with a transplant, now are small and falling off. What can I do to revive it? Simply transplant again into an even larger pot?
Your plant is stressed and may need a pruning to bring it back to health and shape.
You can remove up to 1/3 of the plant. Trim each branch back to a leaf cluster. Use clean garden snips or a scissors.
Here are some links to refresh you on the care requirements.