Occasionally, however, problems develop, and a favorite plant will wilt, drop leaves, or show other signs of distress. One of the most common houseplant problems shows up during the winter months.
Plants develop off-color, yellowish foliage and edges of the leave often curl under.
These symptoms are followed by wilting and leaf drop. In many cases, leaf drop can be traced to overwatering. It's true that plants have to have water, but when maintained inside at this time of year, the water needs of most plants isn't nearly as much as when growing outside on the porch or patio during the summer. It's easy to determine if your plant's problem is related to overwatering. You should be able to take a peek at the roots of larger plants by gently sliding the plant part way out of the container.