Overwatering is a common issue, particularly during the cooler seasons or after rain, Soil that is constantly wet won't allow your plants to "breathe". Plant roots need water to survive, but they also need oxygen.
Check your plants. If they're showing the following signs, reduce the amount of water.
Long Beach Water Department 1800 E. Wardlow Road Long Beach, CA 90807 (562) 570-2300 Site by SiteCreators/SSI 2017