16-0-5 .15 Dimension 50% SCU Pre-emergent Crabgrass and Weed Control and FertilizerDimension 50% SCU Pre emergent Crabgrass and Weed Control Control annuals weeds like crabgrass and japanese stiltgrass with 16 0 5 with Dimension Weed Control and Lawn Fertilizer while also feeding your grass. Dimension is a preemergent crabgrass and annual weed control with some post emergent properties to help control the germination of unwanted annual weeds. Depending on application rate, you cannot plant grass seed for 3 4 months after