The best type of mulch for flowerbeds is one that is easy to maintain and that breaks down slowly to provide nutrients to the flowers. Composted yard waste, such as grass clippings, brush and leaves, is the most cost-effective mulch treatment.
Climate also determines which mulch to use. Windy areas require heavier, more bulky mulch, such as chopped wood pieces. Dry areas require moisture-rich mulch, such as compost, to keep flowers moist and nourished. Organic mulches, such as bark, grass, leaves and some paper, are the most beneficial to keeping flowers healthy. Inorganic mulches, such as plastic, rocks or foils, are used more for decoration.