Compost leaves, grass, and other organic yard waste. Mulch yard waste by spreading leaves or grass clippings around trees and in planting beds. The City of St. Louis operates a weekly collection service for yard waste during the Spring, Summer and Fall months. Yard Waste Collection is discontinued during Winter months for both roll-carts and alley yard waste dumpsters. As long as it rains every once in a while, you’ve got it made. There is much more to watering your lawn than waiting for a good rain or a few splashes with the water hose. Watering a lawn does not mean getting the blades wet.