Some leaf loss is normal when a plant is relocated as it adjusts to its new environment. However, once a plant is established and doing well in its location, sudden leaf loss is frequently to be associated with a change in lighting, especially in the winter when there is less natural light to support a plant. This is particularly true of plants that demand a high amount of natural light.
In spring and summer, plants make the most of the longer days and warmer soil temperatures and grow as rapidly as the available light allows. As the days grow longer and there is more available light to support more leaves, the plants continue to put out new foliage.
This cycle of growth and retraction is ongoing with naturally occurring foliage outdoors. We at Everything Grows like to think that our specialty is bringing the outdoors inside while minimizing the undesirable effects that fall and winter imposes on our tropical plants.