Hydra-Iron Up 5 is designed to prevent and/or correct iron deficiencies in most crops, ornamentals, and turfgrass. Hydra-Iron Up 5 can be applied to the soil or foliage and can be applied alone or combined with other nutrients or pesticides. Hydra-IronUP5 is designed to significantly reduce the risk of staining on concrete, siding, walkways, etc., but applicants should use extreme caution around untreated porous surfaces such as marble and wood.