Jobe's 05231T Flowering Plant Fertilizer Spikes 10-10-4, 1 Pack, Multicolor Jibe's Flowering Plant Fertilizer Spikes 10-10-4 Fertilizer spikes feed trees at the roots, where they need it most Active Ingredients: Nitrogen, Phosphate, Potash, Calcium, Magnesium, Sulfur This product is made in United States