Mulching for moisture retention

Mulching is not a standalone irrigation method but a critical companion to any watering system. Raised beds dry out 30% faster than in-ground gardens; proper mulching can reduce irrigation needs by 25-50%. Apply 2-4 inches of organic mulch over the entire soil surface after plants are established. Best mulch options for vegetable beds: straw (blocks 65% of evaporation, lasts one season, $5-8 per bale covering ~32 sq ft at 4 inches deep), shredded leaves (free, excellent moisture retention, decomposes to feed soil), grass clippings (1-2 inch layer only, nitrogen-rich, free), or aged wood chips (lasts 1-2 seasons, 40% evaporation reduction, best for pathways and perennial beds). Keep mulch 2-3 inches away from plant stems to prevent rot. Do not mulch too early in spring as it keeps soil cool. Apply after soil has warmed and seedlings are several inches tall. For clean aesthetics in visible beds, use fine-textured pine straw or cocoa hull mulch. Refresh mulch as it decomposes throughout the season.