How does the use of cedar mulch within planters affect water retention?

Cedar mulch is a popular choice for gardeners due to its natural ability to improve water retention in planters. When applied as a top layer, cedar mulch reduces soil evaporation by shielding the soil from direct sunlight and wind. Its fibrous structure allows it to absorb and slowly release moisture, keeping plant roots hydrated for longer periods. Additionally, cedar mulch helps regulate soil temperature, preventing rapid drying in hot weather. However, over-application can hinder water penetration, so a 2-3 inch layer is ideal. Beyond water retention, cedar mulch also deters pests and adds organic matter to the soil as it decomposes. For best results, pair cedar mulch with well-draining soil to avoid waterlogging. Whether used in vegetable gardens or decorative planters, cedar mulch is an effective, sustainable solution for maintaining consistent soil moisture.