The NPK for Miracle-Gro Fruit & Citrus Tree Spikes is 10-15-15, which means they provide equally high doses of phosphorus and potassium. They, too, contain the added micronutrients iron and manganese.
• Promotes lush foliage and enhanced fruit production.
• Use once in spring and again in fall.
• Formulation meets the special needs of fruit and citrus trees.
• Easy-to-use spikes release nutrients directly into the root zone to help promote strong fruit and citrus trees.