Which mulches keep your soil moist longest? How thick do you apply them?
Natural mulches like straw, wood chips, and shredded leaves are great for retaining moisture, as they allow water to permeate while providing insulation against evaporation. A layer of about three to four inches is often recommended to maximize moisture retention while preventing weeds. Just be sure to keep the mulch a couple of inches away from plant stems to avoid rot.
Coconut coir is another excellent option for moisture retention. It holds water well and improves soil structure over time. Applying it in a layer of about two to three inches can be very effective. Just like with other mulches, keeping it a few inches away from plant stems is important to prevent any moisture-related issues. Additionally, it breaks down slower than some organic mulches, so it can provide long-lasting benefits in your garden.