What are the best ways to clean and maintain an outdoor rug on a concrete patio?

To clean and maintain an outdoor rug on a concrete patio, regularly vacuum or shake out the rug to remove debris. Use a mild detergent and water to spot clean any stains. Allow the rug to fully dry before placing it back on the patio to prevent mold and mildew growth. Consider using a rug pad underneath to prevent slipping and protect the rug from moisture.