Made for trees, shrubs, citrus, and roses, FoxFarm Bush Doctor Liquid Iron Micro-Nutrient can help boost plant growth, green up, energy production, and nitrogen fixation. Easy-to-use liquid formula includes 5% Fe (iron). OMRI Listed and Registered CDFA Organic Input Material. 1 - 0 - 0 (1 nitrogen - 0 phosphorus - 0 potassium). 1 liquid pint. Always read and follow label directions.