The answer to 'best time for mulching' is that the best time to apply mulch is in the spring, typically between March and May. This is the ideal time because the soil is moist and the mulch will help retain that moisture as the weather warms up. Applying mulch in the spring also helps suppress weeds and insulate the soil, protecting plant roots from temperature extremes.
It's important to apply a 2-4 inch layer of mulch around plants, trees, and shrubs, being careful not to let the mulch touch the trunks or stems. This helps the mulch do its job of retaining moisture and blocking weeds. Avoid applying mulch in the winter, as it can trap moisture and lead to rot.