Shop › Black Shredded Mulch Image 1 of 3 Image 2 of 3 Image 3 of 3 Black Shredded Mulch $6.99 2 cu ft bag / Black Mulch helps prevent weeds by blocking growth and sunlight and helps conserve soil moisture. Quantity: Add To Cart Added! 2 cu ft bag / Black Mulch helps prevent weeds by blocking growth and sunlight and helps conserve soil moisture.