To ensure that you're not overwatering your plant, allow the top third of potting soil to dry out between watering.
Generally speaking, plan to water your aloe plant about every 2-3 weeks in the spring and summer and even more sparingly during the fall and winter. One rule of thumb for fall and winter watering is to roughly double the amount of time between waterings (as compared to your summer watering schedule). In other words, if you water every two weeks in summer, water every four weeks in winter.
