Happy Frog Japanese Maple Fertilizer contains phosphorus and potassium to support the needs of these beautiful trees It is formulated for Japanese maples and all low pH feeders and evergreens Happy Frog Japanese Maple Fertilizer is specifically formulated for use on Japanese maples, lilies, evergreens, hydrangeas, junipers, dogwoods, flowering ornamentals, and other low pH feeders JAPANESE MAPLE FERTILIZER: Japanese maple fertilizer designed to be the ideal addition to your backyard's nutrient stock