Jonathan Green Smart Start 2 Bag Program - MayApply in May. Contains: 1. Weed & Feed Lawn Fertilizer Fertilizer analysis: 21 0 3 Use in the spring or fall Kills weeds down to the root Feeds lawns for up to 3 months Controls 250+ broadleaf weeds 2. Mag I Cal Plus for Lawns in Acidic & Hard Soil Natural soil food for lawns in acidic soil Helps to rapidly raise soil pH increasing nutrient absorption Loosens hard soil promoting air and water penetration for better rooting