Over watering causes root rot and encourages gnats to settle down in their soil that can be most aggravating. There is nothing more embarrassing when you have a family gathering during the holidays and little tiny bugs are flying around and in front of your guests face. In the spring when the amount of light and temperatures improve, increase the amount of water and fertilize with a water soluble plant food. These plants can be placed outside in the summer in a semi-shaded location and left out until there is a danger of frost. Try to avoid abrupt changes in temperatures and dry out because bud and flower-drop often occurs when plants are placed in such conditions.
Acclimation is a very important step for a plant's long and healthy life.
With the hustle and bustle of the holiday season, one can forget about taking care of their indoor plants. Winter is the most important time to really watch your plants as temperatures are changing rapidly.