Rival Tech® Mulch Film is a product used, in a similar fashion to mulch, to suppress weeds and conserve water in crop production and landscaping, different colors of mulch to affect crop growth. Generally, plastic mulch is laid in the spring as soon as the land can be prepared. However, some spring seasons are wet and can delay normal land preparation and planting activities. An alternative is to lay plastic in the fall. Fall mulch application will require similar land preparation as in the spring.